diff --git a/pkg/schedule/checker/rule_checker.go b/pkg/schedule/checker/rule_checker.go
index 1cbb3e5e7d1..0e9c663c77c 100644
--- a/pkg/schedule/checker/rule_checker.go
+++ b/pkg/schedule/checker/rule_checker.go
@@ -577,7 +577,7 @@ func (c *RuleChecker) fixOrphanPeers(region *core.RegionInfo, fit *placement.Reg
 				ruleCheckerRemoveOrphanPeerCounter.Inc()
 				return operator.CreateRemovePeerOperator("remove-unhealthy-orphan-peer", c.cluster, 0, region, orphanPeer.StoreId)
 			}
-			// If there is one extra peer but all the count of all the rule is not satisfied, we should not remove any peer to keep the high available.
+			// The healthy orphan peer should be the last one to be removed only if there are extra peers to keep the high availablility.
 			if hasHealthPeer && extra > 0 {
 				// there already exists a healthy orphan peer, so we can remove other orphan Peers.
 				ruleCheckerRemoveOrphanPeerCounter.Inc()
diff --git a/pkg/schedule/placement/fit.go b/pkg/schedule/placement/fit.go
index 8f9870ce658..d907bcd011a 100644
--- a/pkg/schedule/placement/fit.go
+++ b/pkg/schedule/placement/fit.go
@@ -93,7 +93,7 @@ func (f *RegionFit) IsSatisfied() bool {
 	return len(f.OrphanPeers) == 0
 }
 
-// retrun true if the count of the rule is satisfied.
+// ExtraCount return the extra count.
 func (f *RegionFit) ExtraCount() int {
 	desired := 0
 	for _, r := range f.RuleFits {