diff --git a/src/mds/FSMap.cc b/src/mds/FSMap.cc
index 0ba39f2f7be..0776caed54c 100644
--- a/src/mds/FSMap.cc
+++ b/src/mds/FSMap.cc
@@ -386,7 +386,7 @@ void FSMap::get_health_checks(health_check_map_t *checks) const
     if (!stuck_failed.empty()) {
       health_check_t& fscheck = checks->get_or_add(
         "FS_WITH_FAILED_MDS", HEALTH_WARN,
-        "%num% filesystem%plurals% %hasorhave% a failed mds daemon");
+        "%num% filesystem%plurals% %hasorhave% a failed mds daemon", 1);
       ostringstream ss;
       ss << "fs " << fs->mds_map.fs_name << " has " << stuck_failed.size()
          << " failed mds" << (stuck_failed.size() > 1 ? "s" : "");
@@ -402,7 +402,7 @@ void FSMap::get_health_checks(health_check_map_t *checks) const
   if (standby_count_wanted) {
     std::ostringstream oss, dss;
     oss << "insufficient standby MDS daemons available";
-    auto& d = checks->get_or_add("MDS_INSUFFICIENT_STANDBY", HEALTH_WARN, oss.str());
+    auto& d = checks->get_or_add("MDS_INSUFFICIENT_STANDBY", HEALTH_WARN, oss.str(), 1);
     dss << "have " << standby_daemons.size() << "; want " << standby_count_wanted
 	<< " more";
     d.detail.push_back(dss.str());
diff --git a/src/mds/MDSMap.cc b/src/mds/MDSMap.cc
index 4de759fa11f..fb695d0f4d9 100644
--- a/src/mds/MDSMap.cc
+++ b/src/mds/MDSMap.cc
@@ -435,7 +435,8 @@ void MDSMap::get_health_checks(health_check_map_t *checks) const
   // MDS_DAMAGE
   if (!damaged.empty()) {
     health_check_t& check = checks->get_or_add("MDS_DAMAGE", HEALTH_ERR,
-					"%num% mds daemon%plurals% damaged");
+					       "%num% mds daemon%plurals% damaged",
+					       damaged.size());
     for (auto p : damaged) {
       std::ostringstream oss;
       oss << "fs " << fs_name << " mds." << p << " is damaged";
@@ -447,7 +448,7 @@ void MDSMap::get_health_checks(health_check_map_t *checks) const
   if (is_degraded()) {
     health_check_t& fscheck = checks->get_or_add(
       "FS_DEGRADED", HEALTH_WARN,
-      "%num% filesystem%plurals% %isorare% degraded");
+      "%num% filesystem%plurals% %isorare% degraded", 1);
     ostringstream ss;
     ss << "fs " << fs_name << " is degraded";
     fscheck.detail.push_back(ss.str());
@@ -478,7 +479,7 @@ void MDSMap::get_health_checks(health_check_map_t *checks) const
   if ((mds_rank_t)get_num_in_mds() < get_max_mds()) {
     health_check_t& check = checks->add(
       "MDS_UP_LESS_THAN_MAX", HEALTH_WARN,
-      "%num% filesystem%plurals% %isorare% online with fewer MDS than max_mds");
+      "%num% filesystem%plurals% %isorare% online with fewer MDS than max_mds", 1);
     stringstream ss;
     ss << "fs " << fs_name << " has " << get_num_in_mds()
        << " MDS online, but wants " << get_max_mds();
@@ -489,7 +490,7 @@ void MDSMap::get_health_checks(health_check_map_t *checks) const
   if ((mds_rank_t)get_num_up_mds() == 0 && get_max_mds() > 0) {
     health_check_t &check = checks->add(
       "MDS_ALL_DOWN", HEALTH_ERR,
-      "%num% filesystem%plurals% %isorare% offline");
+      "%num% filesystem%plurals% %isorare% offline", 1);
     stringstream ss;
     ss << "fs " << fs_name << " is offline because no MDS is active for it.";
     check.detail.push_back(ss.str());
@@ -499,7 +500,7 @@ void MDSMap::get_health_checks(health_check_map_t *checks) const
       was_snaps_ever_allowed() && !allows_multimds_snaps()) {
     health_check_t &check = checks->add(
       "MULTIMDS_WITH_OLDSNAPS", HEALTH_ERR,
-      "%num% filesystem%plurals% %isorare% multi-active mds with old snapshots");
+      "%num% filesystem%plurals% %isorare% multi-active mds with old snapshots", 1);
     stringstream ss;
     ss << "multi-active mds while there are snapshots possibly created by pre-mimic MDS";
     check.detail.push_back(ss.str());
diff --git a/src/mgr/BaseMgrModule.cc b/src/mgr/BaseMgrModule.cc
index ddc387f6f55..d18069236f4 100644
--- a/src/mgr/BaseMgrModule.cc
+++ b/src/mgr/BaseMgrModule.cc
@@ -267,6 +267,7 @@ ceph_set_health_checks(BaseMgrModule *self, PyObject *args)
     health_status_t severity = HEALTH_OK;
     string summary;
     list<string> detail;
+    int64_t count = 0;
     PyObject *infols = PyDict_Items(check_info);
     for (int j = 0; j < PyList_Size(infols); ++j) {
       PyObject *pair = PyList_GET_ITEM(infols, j);
@@ -301,6 +302,14 @@ ceph_set_health_checks(BaseMgrModule *self, PyObject *args)
 	} else {
 	  summary = std::move(vs);
 	}
+      } else if (ks == "count") {
+	if (PyLong_Check(v)) {
+	  count = PyLong_AsLong(v);
+	} else {
+	  derr << __func__ << " check " << check_name
+	       << " count value not long" << dendl;
+	  continue;
+	}
       } else if (ks == "detail") {
 	if (!PyList_Check(v)) {
 	  derr << __func__ << " check " << check_name
@@ -322,7 +331,7 @@ ceph_set_health_checks(BaseMgrModule *self, PyObject *args)
 	     << " unexpected key " << k << dendl;
       }
     }
-    auto& d = out_checks.add(check_name, severity, summary);
+    auto& d = out_checks.add(check_name, severity, summary, count);
     d.detail.swap(detail);
   }
 
diff --git a/src/mgr/DaemonHealthMetricCollector.cc b/src/mgr/DaemonHealthMetricCollector.cc
index beba5dad815..0f4d5bd643e 100644
--- a/src/mgr/DaemonHealthMetricCollector.cc
+++ b/src/mgr/DaemonHealthMetricCollector.cc
@@ -18,7 +18,7 @@ class SlowOps final : public DaemonHealthMetricCollector {
     return type == daemon_metric::SLOW_OPS;
   }
   health_check_t& _get_check(health_check_map_t& cm) const override {
-    return cm.get_or_add("SLOW_OPS", HEALTH_WARN, "");
+    return cm.get_or_add("SLOW_OPS", HEALTH_WARN, "", 1);
   }
   bool _update(const DaemonKey& daemon,
                const DaemonHealthMetric& metric) override {
@@ -61,7 +61,7 @@ class PendingPGs final : public DaemonHealthMetricCollector {
     return type == daemon_metric::PENDING_CREATING_PGS;
   }
   health_check_t& _get_check(health_check_map_t& cm) const override {
-    return cm.get_or_add("PENDING_CREATING_PGS", HEALTH_WARN, "");
+    return cm.get_or_add("PENDING_CREATING_PGS", HEALTH_WARN, "", 1);
   }
   bool _update(const DaemonKey& osd,
                const DaemonHealthMetric& metric) override {
diff --git a/src/mgr/PyModuleRegistry.cc b/src/mgr/PyModuleRegistry.cc
index 16c43e40e07..ac92c9282cc 100644
--- a/src/mgr/PyModuleRegistry.cc
+++ b/src/mgr/PyModuleRegistry.cc
@@ -386,7 +386,8 @@ void PyModuleRegistry::get_health_checks(health_check_map_t *checks)
         ss << dependency_modules.size()
 	   << " mgr modules have failed dependencies";
       }
-      auto& d = checks->add("MGR_MODULE_DEPENDENCY", HEALTH_WARN, ss.str());
+      auto& d = checks->add("MGR_MODULE_DEPENDENCY", HEALTH_WARN, ss.str(),
+			    dependency_modules.size());
       for (auto& i : dependency_modules) {
 	std::ostringstream ss;
         ss << "Module '" << i.first << "' has failed dependency: " << i.second;
@@ -402,7 +403,8 @@ void PyModuleRegistry::get_health_checks(health_check_map_t *checks)
       } else if (failed_modules.size() > 1) {
         ss << failed_modules.size() << " mgr modules have failed";
       }
-      auto& d = checks->add("MGR_MODULE_ERROR", HEALTH_ERR, ss.str());
+      auto& d = checks->add("MGR_MODULE_ERROR", HEALTH_ERR, ss.str(),
+			    failed_modules.size());
       for (auto& i : failed_modules) {
 	std::ostringstream ss;
         ss << "Module '" << i.first << "' has failed: " << i.second;
diff --git a/src/mon/AuthMonitor.cc b/src/mon/AuthMonitor.cc
index 89f88b65cda..4025a926ee5 100644
--- a/src/mon/AuthMonitor.cc
+++ b/src/mon/AuthMonitor.cc
@@ -418,7 +418,8 @@ void AuthMonitor::encode_pending(MonitorDBStore::TransactionRef t)
   if (bad_detail.size()) {
     ostringstream ss;
     ss << bad_detail.size() << " auth entities have invalid capabilities";
-    health_check_t *check = &next.add("AUTH_BAD_CAPS", HEALTH_ERR, ss.str());
+    health_check_t *check = &next.add("AUTH_BAD_CAPS", HEALTH_ERR, ss.str(),
+				      bad_detail.size());
     for (auto& i : bad_detail) {
       for (auto& j : i.second) {
 	check->detail.push_back(j);
diff --git a/src/mon/HealthMonitor.cc b/src/mon/HealthMonitor.cc
index 18600acbe25..a750eba9ef0 100644
--- a/src/mon/HealthMonitor.cc
+++ b/src/mon/HealthMonitor.cc
@@ -570,14 +570,14 @@ bool HealthMonitor::check_member_health()
   if (stats.fs_stats.avail_percent <= g_conf()->mon_data_avail_crit) {
     stringstream ss, ss2;
     ss << "mon%plurals% %names% %isorare% very low on available space";
-    auto& d = next.add("MON_DISK_CRIT", HEALTH_ERR, ss.str());
+    auto& d = next.add("MON_DISK_CRIT", HEALTH_ERR, ss.str(), 1);
     ss2 << "mon." << mon->name << " has " << stats.fs_stats.avail_percent
 	<< "% avail";
     d.detail.push_back(ss2.str());
   } else if (stats.fs_stats.avail_percent <= g_conf()->mon_data_avail_warn) {
     stringstream ss, ss2;
     ss << "mon%plurals% %names% %isorare% low on available space";
-    auto& d = next.add("MON_DISK_LOW", HEALTH_WARN, ss.str());
+    auto& d = next.add("MON_DISK_LOW", HEALTH_WARN, ss.str(), 1);
     ss2 << "mon." << mon->name << " has " << stats.fs_stats.avail_percent
 	<< "% avail";
     d.detail.push_back(ss2.str());
@@ -585,7 +585,7 @@ bool HealthMonitor::check_member_health()
   if (stats.store_stats.bytes_total >= g_conf()->mon_data_size_warn) {
     stringstream ss, ss2;
     ss << "mon%plurals% %names% %isorare% using a lot of disk space";
-    auto& d = next.add("MON_DISK_BIG", HEALTH_WARN, ss.str());
+    auto& d = next.add("MON_DISK_BIG", HEALTH_WARN, ss.str(), 1);
     ss2 << "mon." << mon->name << " is "
 	<< byte_u_t(stats.store_stats.bytes_total)
 	<< " >= mon_data_size_warn ("
@@ -611,7 +611,7 @@ bool HealthMonitor::check_member_health()
         g_conf()->mon_osd_down_out_interval == 0) {
       ostringstream ss, ds;
       ss << "mon%plurals% %names% %hasorhave% mon_osd_down_out_interval set to 0";
-      auto& d = next.add("OSD_NO_DOWN_OUT_INTERVAL", HEALTH_WARN, ss.str());
+      auto& d = next.add("OSD_NO_DOWN_OUT_INTERVAL", HEALTH_WARN, ss.str(), 1);
       ds << "mon." << mon->name << " has mon_osd_down_out_interval set to 0";
       d.detail.push_back(ds.str());
     }
@@ -669,7 +669,7 @@ bool HealthMonitor::check_leader_health()
       ostringstream ss;
       ss << (max-actual) << "/" << max << " mons down, quorum "
 	 << mon->get_quorum_names();
-      auto& d = next.add("MON_DOWN", HEALTH_WARN, ss.str());
+      auto& d = next.add("MON_DOWN", HEALTH_WARN, ss.str(), max - actual);
       set<int> q = mon->get_quorum();
       for (int i=0; i<max; i++) {
 	if (q.count(i) == 0) {
@@ -710,7 +710,7 @@ bool HealthMonitor::check_leader_health()
 	if (!warns.empty())
 	  ss << ",";
       }
-      auto& d = next.add("MON_CLOCK_SKEW", HEALTH_WARN, ss.str());
+      auto& d = next.add("MON_CLOCK_SKEW", HEALTH_WARN, ss.str(), details.size());
       d.detail.swap(details);
     }
   }
@@ -732,7 +732,8 @@ bool HealthMonitor::check_leader_health()
     if (!details.empty()) {
       ostringstream ss;
       ss << details.size() << " monitors have not enabled msgr2";
-      auto& d = next.add("MON_MSGR2_NOT_ENABLED", HEALTH_WARN, ss.str());
+      auto& d = next.add("MON_MSGR2_NOT_ENABLED", HEALTH_WARN, ss.str(),
+			 details.size());
       d.detail.swap(details);
     }
   }
diff --git a/src/mon/MDSMonitor.cc b/src/mon/MDSMonitor.cc
index 11d1c6af62a..c51eb850b6c 100644
--- a/src/mon/MDSMonitor.cc
+++ b/src/mon/MDSMonitor.cc
@@ -218,7 +218,8 @@ void MDSMonitor::encode_pending(MonitorDBStore::TransactionRef t)
       health_check_t *check = &new_checks.get_or_add(
 	mds_metric_name(metric.type),
 	metric.sev,
-	mds_metric_summary(metric.type));
+	mds_metric_summary(metric.type),
+	1);
       ostringstream ss;
       ss << "mds" << info.name << "(mds." << rank << "): " << metric.message;
       bool first = true;
diff --git a/src/mon/MgrMonitor.cc b/src/mon/MgrMonitor.cc
index 368416d7243..e92fe529926 100644
--- a/src/mon/MgrMonitor.cc
+++ b/src/mon/MgrMonitor.cc
@@ -322,7 +322,7 @@ void MgrMonitor::encode_pending(MonitorDBStore::TransactionRef t)
   if (pending_map.active_gid == 0) {
     auto level = should_warn_about_mgr_down();
     if (level != HEALTH_OK) {
-      next.add("MGR_DOWN", level, "no active mgr");
+      next.add("MGR_DOWN", level, "no active mgr", 0);
     } else {
       dout(10) << __func__ << " no health warning (never active and new cluster)"
 	       << dendl;
diff --git a/src/mon/PGMap.cc b/src/mon/PGMap.cc
index dde791b2911..5db716ae10f 100644
--- a/src/mon/PGMap.cc
+++ b/src/mon/PGMap.cc
@@ -2605,19 +2605,20 @@ void PGMap::get_health_checks(
     // Compose summary message saying how many PGs in what states led
     // to this health check failing
     std::vector<std::string> pg_msgs;
+    int64_t count = 0;
     for (const auto &j : i.second.states) {
       std::ostringstream msg;
       msg << j.second << (j.second > 1 ? " pgs " : " pg ") << state_name(j.first);
       pg_msgs.push_back(msg.str());
+      count += j.second;
     }
     summary += joinify(pg_msgs.begin(), pg_msgs.end(), std::string(", "));
 
-
-
     health_check_t *check = &checks->add(
         health_code,
         sev,
-        summary);
+        summary,
+	count);
 
     // Compose list of PGs contributing to this health check failing
     for (const auto &j : i.second.pg_messages) {
@@ -2629,7 +2630,8 @@ void PGMap::get_health_checks(
   if (pg_sum.stats.sum.num_scrub_errors) {
     ostringstream ss;
     ss << pg_sum.stats.sum.num_scrub_errors << " scrub errors";
-    checks->add("OSD_SCRUB_ERRORS", HEALTH_ERR, ss.str());
+    checks->add("OSD_SCRUB_ERRORS", HEALTH_ERR, ss.str(),
+		pg_sum.stats.sum.num_scrub_errors);
   }
 
   // LARGE_OMAP_OBJECTS
@@ -2656,7 +2658,8 @@ void PGMap::get_health_checks(
     if (!detail.empty()) {
       ostringstream ss;
       ss << pg_sum.stats.sum.num_large_omap_objects << " large omap objects";
-      auto& d = checks->add("LARGE_OMAP_OBJECTS", HEALTH_WARN, ss.str());
+      auto& d = checks->add("LARGE_OMAP_OBJECTS", HEALTH_WARN, ss.str(),
+			    pg_sum.stats.sum.num_large_omap_objects);
       stringstream tip;
       tip << "Search the cluster log for 'Large omap object found' for more "
           << "details.";
@@ -2711,7 +2714,8 @@ void PGMap::get_health_checks(
     if (!detail.empty()) {
       ostringstream ss;
       ss << num_pools << " cache pools at or near target size";
-      auto& d = checks->add("CACHE_POOL_NEAR_FULL", HEALTH_WARN, ss.str());
+      auto& d = checks->add("CACHE_POOL_NEAR_FULL", HEALTH_WARN, ss.str(),
+			    num_pools);
       d.detail.swap(detail);
     }
   }
@@ -2727,7 +2731,8 @@ void PGMap::get_health_checks(
       ostringstream ss;
       ss << "too few PGs per OSD (" << per
 	 << " < min " << min_pg_per_osd << ")";
-      checks->add("TOO_FEW_PGS", HEALTH_WARN, ss.str());
+      checks->add("TOO_FEW_PGS", HEALTH_WARN, ss.str(),
+		  min_pg_per_osd - per);
     }
   }
 
@@ -2739,7 +2744,8 @@ void PGMap::get_health_checks(
       ostringstream ss;
       ss << "too many PGs per OSD (" << per
 	 << " > max " << max_pg_per_osd << ")";
-      checks->add("TOO_MANY_PGS", HEALTH_WARN, ss.str());
+      checks->add("TOO_MANY_PGS", HEALTH_WARN, ss.str(),
+		  per - max_pg_per_osd);
     }
   }
 
@@ -2750,7 +2756,8 @@ void PGMap::get_health_checks(
     ostringstream ss;
     ss << "OSD count " << osdmap.get_num_osds()
 	 << " < osd_pool_default_size " << osd_pool_default_size;
-    checks->add("TOO_FEW_OSDS", HEALTH_WARN, ss.str());
+    checks->add("TOO_FEW_OSDS", HEALTH_WARN, ss.str(),
+		osd_pool_default_size - osdmap.get_num_osds());
   }
 
   // SMALLER_PGP_NUM
@@ -2803,14 +2810,16 @@ void PGMap::get_health_checks(
     if (!pgp_detail.empty()) {
       ostringstream ss;
       ss << pgp_detail.size() << " pools have pg_num > pgp_num";
-      auto& d = checks->add("SMALLER_PGP_NUM", HEALTH_WARN, ss.str());
+      auto& d = checks->add("SMALLER_PGP_NUM", HEALTH_WARN, ss.str(),
+			    pgp_detail.size());
       d.detail.swap(pgp_detail);
     }
     if (!many_detail.empty()) {
       ostringstream ss;
       ss << many_detail.size() << " pools have many more objects per pg than"
 	 << " average";
-      auto& d = checks->add("MANY_OBJECTS_PER_PG", HEALTH_WARN, ss.str());
+      auto& d = checks->add("MANY_OBJECTS_PER_PG", HEALTH_WARN, ss.str(),
+			    many_detail.size());
       d.detail.swap(many_detail);
     }
   }
@@ -2880,13 +2889,13 @@ void PGMap::get_health_checks(
     if (full_pools) {
       ostringstream ss;
       ss << full_pools << " pools full";
-      auto& d = checks->add("POOL_FULL", HEALTH_ERR, ss.str());
+      auto& d = checks->add("POOL_FULL", HEALTH_ERR, ss.str(), full_pools);
       d.detail.swap(full_detail);
     }
     if (nearfull_pools) {
       ostringstream ss;
       ss << nearfull_pools << " pools nearfull";
-      auto& d = checks->add("POOL_NEAR_FULL", HEALTH_WARN, ss.str());
+      auto& d = checks->add("POOL_NEAR_FULL", HEALTH_WARN, ss.str(), nearfull_pools);
       d.detail.swap(nearfull_detail);
     }
   }
@@ -2903,7 +2912,8 @@ void PGMap::get_health_checks(
     ss << pg_sum.stats.sum.num_objects_misplaced
        << "/" << pg_sum.stats.sum.num_object_copies << " objects misplaced ("
        << b << "%)";
-    checks->add("OBJECT_MISPLACED", HEALTH_WARN, ss.str());
+    checks->add("OBJECT_MISPLACED", HEALTH_WARN, ss.str(),
+		pg_sum.stats.sum.num_objects_misplaced);
   }
 
   // OBJECT_UNFOUND
@@ -2916,7 +2926,8 @@ void PGMap::get_health_checks(
     ostringstream ss;
     ss << pg_sum.stats.sum.num_objects_unfound
        << "/" << pg_sum.stats.sum.num_objects << " objects unfound (" << b << "%)";
-    auto& d = checks->add("OBJECT_UNFOUND", HEALTH_WARN, ss.str());
+    auto& d = checks->add("OBJECT_UNFOUND", HEALTH_WARN, ss.str(),
+			  pg_sum.stats.sum.num_objects_unfound);
 
     for (auto& p : pg_stat) {
       if (p.second.stats.sum.num_objects_unfound) {
@@ -2988,7 +2999,7 @@ void PGMap::get_health_checks(
       ostringstream ss;
       ss << warn << " slow requests are blocked > "
 	 << cct->_conf->mon_osd_warn_op_age << " sec";
-      auto& d = checks->add("REQUEST_SLOW", HEALTH_WARN, ss.str());
+      auto& d = checks->add("REQUEST_SLOW", HEALTH_WARN, ss.str(), warn);
       d.detail.swap(warn_detail);
       int left = max;
       for (auto& p : warn_osd_by_max) {
@@ -3010,7 +3021,7 @@ void PGMap::get_health_checks(
       ostringstream ss;
       ss << error << " stuck requests are blocked > "
 	 << err_age << " sec";
-      auto& d = checks->add("REQUEST_STUCK", HEALTH_ERR, ss.str());
+      auto& d = checks->add("REQUEST_STUCK", HEALTH_ERR, ss.str(), error);
       d.detail.swap(error_detail);
       int left = max;
       for (auto& p : error_osd_by_max) {
@@ -3071,7 +3082,7 @@ void PGMap::get_health_checks(
       } else if (asum.first == "BLUESTORE_NO_PER_POOL_OMAP") {
 	summary = " reporting legacy (not per-pool) BlueStore omap usage stats";
       }
-      auto& d = checks->add(asum.first, HEALTH_WARN, summary);
+      auto& d = checks->add(asum.first, HEALTH_WARN, summary, asum.second.first);
       for (auto& s : asum.second.second) {
         d.detail.push_back(s);
       }
@@ -3140,7 +3151,7 @@ void PGMap::get_health_checks(
     if (detail_total) {
       ostringstream ss;
       ss << detail_total << " pgs not scrubbed in time";
-      auto& d = checks->add("PG_NOT_SCRUBBED", HEALTH_WARN, ss.str());
+      auto& d = checks->add("PG_NOT_SCRUBBED", HEALTH_WARN, ss.str(), detail_total);
 
       if (!detail.empty()) {
         d.detail.swap(detail);
@@ -3155,7 +3166,8 @@ void PGMap::get_health_checks(
     if (deep_detail_total) {
       ostringstream ss;
       ss << deep_detail_total << " pgs not deep-scrubbed in time";
-      auto& d = checks->add("PG_NOT_DEEP_SCRUBBED", HEALTH_WARN, ss.str());
+      auto& d = checks->add("PG_NOT_DEEP_SCRUBBED", HEALTH_WARN, ss.str(),
+			    deep_detail_total);
 
       if (!deep_detail.empty()) {
         d.detail.swap(deep_detail);
@@ -3196,7 +3208,8 @@ void PGMap::get_health_checks(
     if (!detail.empty()) {
       ostringstream ss;
       ss << detail.size() << " pool(s) do not have an application enabled";
-      auto& d = checks->add("POOL_APP_NOT_ENABLED", HEALTH_WARN, ss.str());
+      auto& d = checks->add("POOL_APP_NOT_ENABLED", HEALTH_WARN, ss.str(),
+			    detail.size());
       stringstream tip;
       tip << "use 'ceph osd pool application enable <pool-name> "
           << "<app-name>', where <app-name> is 'cephfs', 'rbd', 'rgw', "
@@ -3244,7 +3257,8 @@ void PGMap::get_health_checks(
 
       stringstream ss;
       ss << "snap trim queue for " << snaptrimq_exceeded << " pg(s) >= " << snapthreshold << " (mon_osd_snap_trim_queue_warn_on)";
-      auto& d = checks->add("PG_SLOW_SNAP_TRIMMING", HEALTH_WARN, ss.str());
+      auto& d = checks->add("PG_SLOW_SNAP_TRIMMING", HEALTH_WARN, ss.str(),
+			    snaptrimq_exceeded);
       detail.push_back("try decreasing \"osd snap trim sleep\" and/or increasing \"osd pg max concurrent snap trims\".");
       d.detail.swap(detail);
     }
diff --git a/src/mon/health_check.h b/src/mon/health_check.h
index 4215a8bdbca..107f67293d3 100644
--- a/src/mon/health_check.h
+++ b/src/mon/health_check.h
@@ -14,12 +14,16 @@ struct health_check_t {
   health_status_t severity;
   std::string summary;
   std::list<std::string> detail;
+  int64_t count = 0;
 
   DENC(health_check_t, v, p) {
-    DENC_START(1, 1, p);
+    DENC_START(2, 1, p);
     denc(v.severity, p);
     denc(v.summary, p);
     denc(v.detail, p);
+    if (struct_v >= 2) {
+      denc(v.count, p);
+    }
     DENC_FINISH(p);
   }
 
@@ -27,7 +31,8 @@ struct health_check_t {
 			 const health_check_t& r) {
     return l.severity == r.severity &&
       l.summary == r.summary &&
-      l.detail == r.detail;
+      l.detail == r.detail &&
+      l.count == r.count;
   }
   friend bool operator!=(const health_check_t& l,
 			 const health_check_t& r) {
@@ -39,6 +44,7 @@ struct health_check_t {
 
     f->open_object_section("summary");
     f->dump_string("message", summary);
+    f->dump_int("count", count);
     f->close_section();
 
     if (want_detail) {
@@ -58,6 +64,7 @@ struct health_check_t {
     ls.back()->severity = HEALTH_ERR;
     ls.back()->summary = "summarization";
     ls.back()->detail = {"one", "two", "three"};
+    ls.back()->count = 42;
   }
 };
 WRITE_CLASS_DENC(health_check_t)
@@ -117,14 +124,15 @@ struct health_check_map_t {
     ls.push_back(new health_check_map_t);
     ls.push_back(new health_check_map_t);
     {
-      auto& d = ls.back()->add("FOO", HEALTH_WARN, "foo");
+      auto& d = ls.back()->add("FOO", HEALTH_WARN, "foo", 2);
       d.detail.push_back("a");
       d.detail.push_back("b");
     }
     {
-      auto& d = ls.back()->add("BAR", HEALTH_ERR, "bar!");
+      auto& d = ls.back()->add("BAR", HEALTH_ERR, "bar!", 3);
       d.detail.push_back("c");
       d.detail.push_back("d");
+      d.detail.push_back("e");
     }
   }
 
@@ -140,19 +148,23 @@ struct health_check_map_t {
 
   health_check_t& add(const std::string& code,
 		      health_status_t severity,
-		      const std::string& summary) {
+		      const std::string& summary,
+		      int64_t count) {
     ceph_assert(checks.count(code) == 0);
     health_check_t& r = checks[code];
     r.severity = severity;
     r.summary = summary;
+    r.count = count;
     return r;
   }
   health_check_t& get_or_add(const std::string& code,
 			     health_status_t severity,
-			     const std::string& summary) {
+			     const std::string& summary,
+			     int64_t count) {
     health_check_t& r = checks[code];
     r.severity = severity;
     r.summary = summary;
+    r.count += count;
     return r;
   }
 
@@ -168,6 +180,7 @@ struct health_check_map_t {
 	  q->second.detail.end(),
 	  p.second.detail.begin(),
 	  p.second.detail.end());
+	q->second.count += p.second.count;
       }
     }
   }
diff --git a/src/osd/OSDMap.cc b/src/osd/OSDMap.cc
index 6e6732cb4e2..3982dae9827 100644
--- a/src/osd/OSDMap.cc
+++ b/src/osd/OSDMap.cc
@@ -5568,7 +5568,8 @@ void OSDMap::check_health(health_check_map_t *checks) const
 	  string err = string("OSD_") +
 	    string(crush->get_type_name(type)) + "_DOWN";
 	  boost::to_upper(err);
-	  auto& d = checks->add(err, HEALTH_WARN, ss.str());
+	  auto& d = checks->add(err, HEALTH_WARN, ss.str(),
+				subtree_type_down[type].size());
 	  for (auto j = subtree_type_down[type].rbegin();
 	       j != subtree_type_down[type].rend();
 	       ++j) {
@@ -5591,7 +5592,8 @@ void OSDMap::check_health(health_check_map_t *checks) const
       }
       ostringstream ss;
       ss << down_in_osds.size() << " osds down";
-      auto& d = checks->add("OSD_DOWN", HEALTH_WARN, ss.str());
+      auto& d = checks->add("OSD_DOWN", HEALTH_WARN, ss.str(),
+			    down_in_osds.size());
       for (auto it = down_in_osds.begin(); it != down_in_osds.end(); ++it) {
 	ostringstream ss;
 	ss << "osd." << *it << " (";
@@ -5604,7 +5606,8 @@ void OSDMap::check_health(health_check_map_t *checks) const
     if (!osds.empty()) {
       ostringstream ss;
       ss << osds.size() << " osds exist in the crush map but not in the osdmap";
-      auto& d = checks->add("OSD_ORPHAN", HEALTH_WARN, ss.str());
+      auto& d = checks->add("OSD_ORPHAN", HEALTH_WARN, ss.str(),
+			    osds.size());
       for (auto osd : osds) {
 	ostringstream ss;
 	ss << "osd." << osd << " exists in crush map but not in osdmap";
@@ -5634,7 +5637,7 @@ void OSDMap::check_health(health_check_map_t *checks) const
     out += noscrub ? string("noscrub") + (nodeepscrub ? ", " : "") : "";
     out += nodeepscrub ? "nodeep-scrub" : "";
     auto& d = checks->add("POOL_SCRUB_FLAGS", HEALTH_OK,
-      "Some pool(s) have the " + out + " flag(s) set");
+			  "Some pool(s) have the " + out + " flag(s) set", 0);
     d.detail.splice(d.detail.end(), scrub_messages);
   }
 
@@ -5673,7 +5676,7 @@ void OSDMap::check_health(health_check_map_t *checks) const
     }
     if (!detail.empty()) {
       auto& d = checks->add("OSD_OUT_OF_ORDER_FULL", HEALTH_ERR,
-			 "full ratio(s) out of order");
+			    "full ratio(s) out of order", 0);
       d.detail.swap(detail);
     }
   }
@@ -5688,7 +5691,7 @@ void OSDMap::check_health(health_check_map_t *checks) const
     if (full.size()) {
       ostringstream ss;
       ss << full.size() << " full osd(s)";
-      auto& d = checks->add("OSD_FULL", HEALTH_ERR, ss.str());
+      auto& d = checks->add("OSD_FULL", HEALTH_ERR, ss.str(), full.size());
       for (auto& i: full) {
 	ostringstream ss;
 	ss << "osd." << i << " is full";
@@ -5698,7 +5701,8 @@ void OSDMap::check_health(health_check_map_t *checks) const
     if (backfillfull.size()) {
       ostringstream ss;
       ss << backfillfull.size() << " backfillfull osd(s)";
-      auto& d = checks->add("OSD_BACKFILLFULL", HEALTH_WARN, ss.str());
+      auto& d = checks->add("OSD_BACKFILLFULL", HEALTH_WARN, ss.str(),
+			    backfillfull.size());
       for (auto& i: backfillfull) {
 	ostringstream ss;
 	ss << "osd." << i << " is backfill full";
@@ -5708,7 +5712,7 @@ void OSDMap::check_health(health_check_map_t *checks) const
     if (nearfull.size()) {
       ostringstream ss;
       ss << nearfull.size() << " nearfull osd(s)";
-      auto& d = checks->add("OSD_NEARFULL", HEALTH_WARN, ss.str());
+      auto& d = checks->add("OSD_NEARFULL", HEALTH_WARN, ss.str(), nearfull.size());
       for (auto& i: nearfull) {
 	ostringstream ss;
 	ss << "osd." << i << " is near full";
@@ -5739,9 +5743,10 @@ void OSDMap::check_health(health_check_map_t *checks) const
       CEPH_OSDMAP_NOREBALANCE;
     if (test_flag(warn_flags)) {
       ostringstream ss;
-      ss << get_flag_string(get_flags() & warn_flags)
-	 << " flag(s) set";
-      checks->add("OSDMAP_FLAGS", HEALTH_WARN, ss.str());
+      string s = get_flag_string(get_flags() & warn_flags);
+      ss << s << " flag(s) set";
+      checks->add("OSDMAP_FLAGS", HEALTH_WARN, ss.str(),
+		  s.size() /* kludgey but sufficient */);
     }
   }
 
@@ -5787,7 +5792,7 @@ void OSDMap::check_health(health_check_map_t *checks) const
     if (!detail.empty()) {
       ostringstream ss;
       ss << detail.size() << " OSDs or CRUSH {nodes, device-classes} have {NOUP,NODOWN,NOIN,NOOUT} flags set";
-      auto& d = checks->add("OSD_FLAGS", HEALTH_WARN, ss.str());
+      auto& d = checks->add("OSD_FLAGS", HEALTH_WARN, ss.str(), detail.size());
       d.detail.swap(detail);
     }
   }
@@ -5799,7 +5804,7 @@ void OSDMap::check_health(health_check_map_t *checks) const
       ostringstream ss;
       ss << "crush map has legacy tunables (require " << min
 	 << ", min is " << g_conf()->mon_crush_min_required_version << ")";
-      auto& d = checks->add("OLD_CRUSH_TUNABLES", HEALTH_WARN, ss.str());
+      auto& d = checks->add("OLD_CRUSH_TUNABLES", HEALTH_WARN, ss.str(), 0);
       d.detail.push_back("see http://docs.ceph.com/docs/master/rados/operations/crush-map/#tunables");
     }
   }
@@ -5809,7 +5814,7 @@ void OSDMap::check_health(health_check_map_t *checks) const
     if (crush->get_straw_calc_version() == 0) {
       ostringstream ss;
       ss << "crush map has straw_calc_version=0";
-      auto& d = checks->add("OLD_CRUSH_STRAW_CALC_VERSION", HEALTH_WARN, ss.str());
+      auto& d = checks->add("OLD_CRUSH_STRAW_CALC_VERSION", HEALTH_WARN, ss.str(), 0);
       d.detail.push_back(
 	"see http://docs.ceph.com/docs/master/rados/operations/crush-map/#tunables");
     }
@@ -5832,7 +5837,8 @@ void OSDMap::check_health(health_check_map_t *checks) const
     if (!detail.empty()) {
       ostringstream ss;
       ss << detail.size() << " cache pools are missing hit_sets";
-      auto& d = checks->add("CACHE_POOL_NO_HIT_SET", HEALTH_WARN, ss.str());
+      auto& d = checks->add("CACHE_POOL_NO_HIT_SET", HEALTH_WARN, ss.str(),
+			    detail.size());
       d.detail.swap(detail);
     }
   }
@@ -5841,7 +5847,7 @@ void OSDMap::check_health(health_check_map_t *checks) const
   if (!test_flag(CEPH_OSDMAP_SORTBITWISE)) {
     ostringstream ss;
     ss << "'sortbitwise' flag is not set";
-    checks->add("OSD_NO_SORTBITWISE", HEALTH_WARN, ss.str());
+    checks->add("OSD_NO_SORTBITWISE", HEALTH_WARN, ss.str(), 0);
   }
 
   // OSD_UPGRADE_FINISHED
@@ -5876,19 +5882,21 @@ void OSDMap::check_health(health_check_map_t *checks) const
     if (!full_detail.empty()) {
       ostringstream ss;
       ss << full_detail.size() << " pool(s) full";
-      auto& d = checks->add("POOL_FULL", HEALTH_WARN, ss.str());
+      auto& d = checks->add("POOL_FULL", HEALTH_WARN, ss.str(), full_detail.size());
       d.detail.swap(full_detail);
     }
     if (!backfillfull_detail.empty()) {
       ostringstream ss;
       ss << backfillfull_detail.size() << " pool(s) backfillfull";
-      auto& d = checks->add("POOL_BACKFILLFULL", HEALTH_WARN, ss.str());
+      auto& d = checks->add("POOL_BACKFILLFULL", HEALTH_WARN, ss.str(),
+			    backfillfull_detail.size());
       d.detail.swap(backfillfull_detail);
     }
     if (!nearfull_detail.empty()) {
       ostringstream ss;
       ss << nearfull_detail.size() << " pool(s) nearfull";
-      auto& d = checks->add("POOL_NEARFULL", HEALTH_WARN, ss.str());
+      auto& d = checks->add("POOL_NEARFULL", HEALTH_WARN, ss.str(),
+			    nearfull_detail.size());
       d.detail.swap(nearfull_detail);
     }
   }
diff --git a/src/pybind/mgr/crash/module.py b/src/pybind/mgr/crash/module.py
index d605dd34fe8..ba3931e6c44 100644
--- a/src/pybind/mgr/crash/module.py
+++ b/src/pybind/mgr/crash/module.py
@@ -87,6 +87,7 @@ class Module(MgrModule):
             health_checks['RECENT_CRASH'] = {
                 'severity': 'warning',
                 'summary': '%d daemons have recently crashed' % (num),
+                'count': num,
                 'detail': detail,
             }
         self.set_health_checks(health_checks)
diff --git a/src/pybind/mgr/devicehealth/module.py b/src/pybind/mgr/devicehealth/module.py
index b657dc55f1b..febb14ee9b3 100644
--- a/src/pybind/mgr/devicehealth/module.py
+++ b/src/pybind/mgr/devicehealth/module.py
@@ -553,6 +553,7 @@ class Module(MgrModule):
                 checks[warning] = {
                     'severity': 'warning',
                     'summary': HEALTH_MESSAGES[warning] % n,
+                    'count': len(ls),
                     'detail': ls,
                 }
         self.set_health_checks(checks)
diff --git a/src/pybind/mgr/mgr_module.py b/src/pybind/mgr/mgr_module.py
index 731108397c8..b34bc523c92 100644
--- a/src/pybind/mgr/mgr_module.py
+++ b/src/pybind/mgr/mgr_module.py
@@ -896,6 +896,7 @@ class MgrModule(ceph_module.BaseMgrModule):
              'CHECK_FOO': {
                'severity': 'warning',           # or 'error'
                'summary': 'summary string',
+               'count': 4,                      # quantify badness
                'detail': [ 'list', 'of', 'detail', 'strings' ],
               },
              'CHECK_BAR': {
diff --git a/src/pybind/mgr/pg_autoscaler/module.py b/src/pybind/mgr/pg_autoscaler/module.py
index e21ecfdacdc..2c45c992174 100644
--- a/src/pybind/mgr/pg_autoscaler/module.py
+++ b/src/pybind/mgr/pg_autoscaler/module.py
@@ -401,6 +401,7 @@ class PgAutoscaler(MgrModule):
             health_checks['POOL_TOO_FEW_PGS'] = {
                 'severity': 'warning',
                 'summary': summary,
+                'count': len(too_few),
                 'detail': too_few
             }
         if too_many:
@@ -409,6 +410,7 @@ class PgAutoscaler(MgrModule):
             health_checks['POOL_TOO_MANY_PGS'] = {
                 'severity': 'warning',
                 'summary': summary,
+                'count': len(too_many),
                 'detail': too_many
             }
 
@@ -436,6 +438,7 @@ class PgAutoscaler(MgrModule):
             health_checks['POOL_TARGET_SIZE_RATIO_OVERCOMMITTED'] = {
                 'severity': 'warning',
                 'summary': "%d subtrees have overcommitted pool target_size_ratio" % len(too_much_target_ratio),
+                'count': len(too_much_target_ratio),
                 'detail': too_much_target_ratio,
             }
 
@@ -465,6 +468,7 @@ class PgAutoscaler(MgrModule):
             health_checks['POOL_TARGET_SIZE_BYTES_OVERCOMMITTED'] = {
                 'severity': 'warning',
                 'summary': "%d subtrees have overcommitted pool target_size_bytes" % len(too_much_target_bytes),
+                'count': len(too_much_target_bytes),
                 'detail': too_much_target_bytes,
             }
 
diff --git a/src/pybind/mgr/selftest/module.py b/src/pybind/mgr/selftest/module.py
index a5a2cc10273..a3fb51cde13 100644
--- a/src/pybind/mgr/selftest/module.py
+++ b/src/pybind/mgr/selftest/module.py
@@ -177,6 +177,7 @@ class Module(MgrModule):
                 self._health[check] = {
                     "severity": str(info["severity"]),
                     "summary": str(info["summary"]),
+                    "count": 123,
                     "detail": [str(m) for m in info["detail"]]
                 }
         except Exception as e: