diff --git a/internal/locate/region_cache.go b/internal/locate/region_cache.go
index 6e733c888..6e02c1bc0 100644
--- a/internal/locate/region_cache.go
+++ b/internal/locate/region_cache.go
@@ -1902,7 +1902,7 @@ func (mu *regionIndexMu) insertRegionToCache(cachedRegion *Region, invalidateOld
 	// and there is the synchronization time between the pd follower and the leader.
 	// So we should check the epoch.
 	if ok && (oldVer.GetVer() > newVer.GetVer() || oldVer.GetConfVer() > newVer.GetConfVer()) {
-		metrics.StaleRegionFromPDCounter.Inc()
+		metrics.TiKVStaleRegionFromPDCounter.Inc()
 		logutil.BgLogger().Debug("get stale region",
 			zap.Uint64("region", newVer.GetID()), zap.Uint64("new-ver", newVer.GetVer()), zap.Uint64("new-conf", newVer.GetConfVer()),
 			zap.Uint64("old-ver", oldVer.GetVer()), zap.Uint64("old-conf", oldVer.GetConfVer()))
diff --git a/internal/locate/sorted_btree.go b/internal/locate/sorted_btree.go
index 020335ef3..31bfef9e0 100644
--- a/internal/locate/sorted_btree.go
+++ b/internal/locate/sorted_btree.go
@@ -113,7 +113,7 @@ func (s *SortedRegions) removeIntersecting(r *Region, verID RegionVerID) ([]*btr
 			return false
 		}
 		if item.cachedRegion.meta.GetRegionEpoch().GetVersion() > verID.ver {
-			metrics.StaleRegionFromPDCounter.Inc()
+			metrics.TiKVStaleRegionFromPDCounter.Inc()
 			logutil.BgLogger().Debug("get stale region",
 				zap.Uint64("region", verID.GetID()), zap.Uint64("ver", verID.GetVer()), zap.Uint64("conf", verID.GetConfVer()),
 				zap.Uint64("intersecting-ver", item.cachedRegion.meta.GetRegionEpoch().GetVersion()))
diff --git a/metrics/metrics.go b/metrics/metrics.go
index 400403522..29548afa8 100644
--- a/metrics/metrics.go
+++ b/metrics/metrics.go
@@ -117,7 +117,7 @@ var (
 	TiKVPipelinedFlushDuration                     prometheus.Histogram
 	TiKVValidateReadTSFromPDCount                  prometheus.Counter
 	TiKVLowResolutionTSOUpdateIntervalSecondsGauge prometheus.Gauge
-	StaleRegionFromPDCounter                       prometheus.Counter
+	TiKVStaleRegionFromPDCounter                   prometheus.Counter
 )
 
 // Label constants.
@@ -853,7 +853,7 @@ func initMetrics(namespace, subsystem string, constLabels prometheus.Labels) {
 			Help:      "The actual working update interval for the low resolution TSO. As there are adaptive mechanism internally, this value may differ from the config.",
 		})
 
-	StaleRegionFromPDCounter = prometheus.NewCounter(
+	TiKVStaleRegionFromPDCounter = prometheus.NewCounter(
 		prometheus.CounterOpts{
 			Namespace: namespace,
 			Subsystem: subsystem,
@@ -957,7 +957,7 @@ func RegisterMetrics() {
 	prometheus.MustRegister(TiKVPipelinedFlushDuration)
 	prometheus.MustRegister(TiKVValidateReadTSFromPDCount)
 	prometheus.MustRegister(TiKVLowResolutionTSOUpdateIntervalSecondsGauge)
-	prometheus.MustRegister(StaleRegionFromPDCounter)
+	prometheus.MustRegister(TiKVStaleRegionFromPDCounter)
 }
 
 // readCounter reads the value of a prometheus.Counter.