diff --git a/docs/metrics/workload/deployment-metrics.md b/docs/metrics/workload/deployment-metrics.md
index 94f515901..6b07e50b9 100644
--- a/docs/metrics/workload/deployment-metrics.md
+++ b/docs/metrics/workload/deployment-metrics.md
@@ -9,7 +9,7 @@
 | kube_deployment_status_replicas_unavailable                 | Gauge       |                                                                                                                           | `deployment`=&lt;deployment-name&gt; <br> `namespace`=&lt;deployment-namespace&gt;                                                                                          | STABLE       |
 | kube_deployment_status_replicas_updated                     | Gauge       |                                                                                                                           | `deployment`=&lt;deployment-name&gt; <br> `namespace`=&lt;deployment-namespace&gt;                                                                                          | STABLE       |
 | kube_deployment_status_observed_generation                  | Gauge       |                                                                                                                           | `deployment`=&lt;deployment-name&gt; <br> `namespace`=&lt;deployment-namespace&gt;                                                                                          | STABLE       |
-| kube_deployment_status_condition                            | Gauge       |                                                                                                                           | `deployment`=&lt;deployment-name&gt; <br> `namespace`=&lt;deployment-namespace&gt; <br> `condition`=&lt;deployment-condition&gt; <br> `status`=&lt;true\|false\|unknown&gt; | STABLE       |
+| kube_deployment_status_condition                            |                                                     Gauge                                                                                                                            |       |  `deployment`=&lt;deployment-name&gt; <br> `namespace`=&lt;deployment-namespace&gt; <br> `reason`=&lt;deployment-transition-reason&gt; <br> `condition`=&lt;deployment-condition&gt; <br> `status`=&lt;true\|false\|unknown&gt;                                                                                                               | STABLE       |
 | kube_deployment_spec_replicas                               | Gauge       |                                                                                                                           | `deployment`=&lt;deployment-name&gt; <br> `namespace`=&lt;deployment-namespace&gt;                                                                                          | STABLE       |
 | kube_deployment_spec_paused                                 | Gauge       |                                                                                                                           | `deployment`=&lt;deployment-name&gt; <br> `namespace`=&lt;deployment-namespace&gt;                                                                                          | STABLE       |
 | kube_deployment_spec_strategy_rollingupdate_max_unavailable | Gauge       |                                                                                                                           | `deployment`=&lt;deployment-name&gt; <br> `namespace`=&lt;deployment-namespace&gt;                                                                                          | STABLE       |
diff --git a/internal/store/deployment.go b/internal/store/deployment.go
index 7f902b0c1..7b6c71afa 100644
--- a/internal/store/deployment.go
+++ b/internal/store/deployment.go
@@ -41,6 +41,22 @@ var (
 	descDeploymentLabelsDefaultLabels = []string{"namespace", "deployment"}
 )
 
+// Reasons copied from kubernetes/pkg/controller/deployment/deployment_utils.go.
+var (
+	allowedDeploymentReasons = map[string]struct{}{
+		"ReplicaSetUpdated":          {},
+		"ReplicaSetCreateError":      {},
+		"NewReplicaSetCreated":       {},
+		"FoundNewReplicaSet":         {},
+		"NewReplicaSetAvailable":     {},
+		"ProgressDeadlineExceeded":   {},
+		"DeploymentPaused":           {},
+		"DeploymentResumed":          {},
+		"MinimumReplicasAvailable":   {},
+		"MinimumReplicasUnavailable": {},
+	}
+)
+
 func deploymentMetricFamilies(allowAnnotationsList, allowLabelsList []string) []generator.FamilyGenerator {
 	return []generator.FamilyGenerator{
 		*generator.NewFamilyGeneratorWithStability(
@@ -174,8 +190,13 @@ func deploymentMetricFamilies(allowAnnotationsList, allowLabelsList []string) []
 					for j, m := range conditionMetrics {
 						metric := m
 
-						metric.LabelKeys = []string{"condition", "status"}
-						metric.LabelValues = append([]string{string(c.Type)}, metric.LabelValues...)
+						reason := c.Reason
+						if _, ok := allowedDeploymentReasons[reason]; !ok {
+							reason = "unknown"
+						}
+
+						metric.LabelKeys = []string{"reason", "condition", "status"}
+						metric.LabelValues = append([]string{reason, string(c.Type)}, metric.LabelValues...)
 						ms[i*len(conditionStatuses)+j] = metric
 					}
 				}
diff --git a/internal/store/deployment_test.go b/internal/store/deployment_test.go
index 31be4a17d..662a44cb5 100644
--- a/internal/store/deployment_test.go
+++ b/internal/store/deployment_test.go
@@ -31,6 +31,7 @@ import (
 var (
 	depl1Replicas int32 = 200
 	depl2Replicas int32 = 5
+	depl3Replicas int32 = 1
 
 	depl1MaxUnavailable = intstr.FromInt(10)
 	depl2MaxUnavailable = intstr.FromString("25%")
@@ -98,8 +99,8 @@ func TestDeploymentStore(t *testing.T) {
 					UpdatedReplicas:     2,
 					ObservedGeneration:  111,
 					Conditions: []v1.DeploymentCondition{
-						{Type: v1.DeploymentAvailable, Status: corev1.ConditionTrue},
-						{Type: v1.DeploymentProgressing, Status: corev1.ConditionTrue},
+						{Type: v1.DeploymentAvailable, Status: corev1.ConditionTrue, Reason: "MinimumReplicasAvailable"},
+						{Type: v1.DeploymentProgressing, Status: corev1.ConditionTrue, Reason: "NewReplicaSetAvailable"},
 					},
 				},
 				Spec: v1.DeploymentSpec{
@@ -126,12 +127,12 @@ func TestDeploymentStore(t *testing.T) {
         kube_deployment_status_replicas_updated{deployment="depl1",namespace="ns1"} 2
         kube_deployment_status_replicas{deployment="depl1",namespace="ns1"} 15
         kube_deployment_status_replicas_ready{deployment="depl1",namespace="ns1"} 10
-        kube_deployment_status_condition{deployment="depl1",namespace="ns1",condition="Available",status="true"} 1
-        kube_deployment_status_condition{deployment="depl1",namespace="ns1",condition="Progressing",status="true"} 1
-        kube_deployment_status_condition{deployment="depl1",namespace="ns1",condition="Available",status="false"} 0
-        kube_deployment_status_condition{deployment="depl1",namespace="ns1",condition="Progressing",status="false"} 0
-        kube_deployment_status_condition{deployment="depl1",namespace="ns1",condition="Available",status="unknown"} 0
-        kube_deployment_status_condition{deployment="depl1",namespace="ns1",condition="Progressing",status="unknown"} 0
+        kube_deployment_status_condition{condition="Available",deployment="depl1",namespace="ns1",reason="MinimumReplicasAvailable",status="true"} 1
+        kube_deployment_status_condition{condition="Available",deployment="depl1",namespace="ns1",reason="MinimumReplicasAvailable",status="false"} 0
+        kube_deployment_status_condition{condition="Available",deployment="depl1",namespace="ns1",reason="MinimumReplicasAvailable",status="unknown"} 0
+        kube_deployment_status_condition{condition="Progressing",deployment="depl1",namespace="ns1",reason="NewReplicaSetAvailable",status="true"} 1
+        kube_deployment_status_condition{condition="Progressing",deployment="depl1",namespace="ns1",reason="NewReplicaSetAvailable",status="false"} 0
+        kube_deployment_status_condition{condition="Progressing",deployment="depl1",namespace="ns1",reason="NewReplicaSetAvailable",status="unknown"} 0
 `,
 		},
 		{
@@ -152,9 +153,9 @@ func TestDeploymentStore(t *testing.T) {
 					UpdatedReplicas:     1,
 					ObservedGeneration:  1111,
 					Conditions: []v1.DeploymentCondition{
-						{Type: v1.DeploymentAvailable, Status: corev1.ConditionFalse},
-						{Type: v1.DeploymentProgressing, Status: corev1.ConditionFalse},
-						{Type: v1.DeploymentReplicaFailure, Status: corev1.ConditionTrue},
+						{Type: v1.DeploymentAvailable, Status: corev1.ConditionFalse, Reason: "MinimumReplicasUnavailable"},
+						{Type: v1.DeploymentProgressing, Status: corev1.ConditionFalse, Reason: "ProgressDeadlineExceeded"},
+						{Type: v1.DeploymentReplicaFailure, Status: corev1.ConditionTrue, Reason: "ReplicaSetCreateError"},
 					},
 				},
 				Spec: v1.DeploymentSpec{
@@ -180,15 +181,45 @@ func TestDeploymentStore(t *testing.T) {
         kube_deployment_status_replicas_updated{deployment="depl2",namespace="ns2"} 1
         kube_deployment_status_replicas{deployment="depl2",namespace="ns2"} 10
         kube_deployment_status_replicas_ready{deployment="depl2",namespace="ns2"} 5
-        kube_deployment_status_condition{deployment="depl2",namespace="ns2",condition="Available",status="true"} 0
-        kube_deployment_status_condition{deployment="depl2",namespace="ns2",condition="Progressing",status="true"} 0
-        kube_deployment_status_condition{deployment="depl2",namespace="ns2",condition="ReplicaFailure",status="true"} 1
-        kube_deployment_status_condition{deployment="depl2",namespace="ns2",condition="Available",status="false"} 1
-        kube_deployment_status_condition{deployment="depl2",namespace="ns2",condition="Progressing",status="false"} 1
-        kube_deployment_status_condition{deployment="depl2",namespace="ns2",condition="ReplicaFailure",status="false"} 0
-        kube_deployment_status_condition{deployment="depl2",namespace="ns2",condition="Available",status="unknown"} 0
-        kube_deployment_status_condition{deployment="depl2",namespace="ns2",condition="Progressing",status="unknown"} 0
-        kube_deployment_status_condition{deployment="depl2",namespace="ns2",condition="ReplicaFailure",status="unknown"} 0
+        kube_deployment_status_condition{condition="Available",deployment="depl2",namespace="ns2",reason="MinimumReplicasUnavailable",status="true"} 0
+        kube_deployment_status_condition{condition="Available",deployment="depl2",namespace="ns2",reason="MinimumReplicasUnavailable",status="false"} 1
+        kube_deployment_status_condition{condition="Available",deployment="depl2",namespace="ns2",reason="MinimumReplicasUnavailable",status="unknown"} 0
+        kube_deployment_status_condition{condition="Progressing",deployment="depl2",namespace="ns2",reason="ProgressDeadlineExceeded",status="true"} 0
+        kube_deployment_status_condition{condition="Progressing",deployment="depl2",namespace="ns2",reason="ProgressDeadlineExceeded",status="false"} 1
+        kube_deployment_status_condition{condition="Progressing",deployment="depl2",namespace="ns2",reason="ProgressDeadlineExceeded",status="unknown"} 0
+        kube_deployment_status_condition{condition="ReplicaFailure",deployment="depl2",namespace="ns2",reason="ReplicaSetCreateError",status="true"} 1
+        kube_deployment_status_condition{condition="ReplicaFailure",deployment="depl2",namespace="ns2",reason="ReplicaSetCreateError",status="false"} 0
+        kube_deployment_status_condition{condition="ReplicaFailure",deployment="depl2",namespace="ns2",reason="ReplicaSetCreateError",status="unknown"} 0
+`,
+		},
+		{
+			Obj: &v1.Deployment{
+				ObjectMeta: metav1.ObjectMeta{
+					Name:      "depl3",
+					Namespace: "ns3",
+				},
+				Status: v1.DeploymentStatus{
+					Conditions: []v1.DeploymentCondition{
+						{Type: v1.DeploymentAvailable, Status: corev1.ConditionFalse, Reason: "ThisReasonIsNotAllowed"},
+					},
+				},
+				Spec: v1.DeploymentSpec{
+					Replicas: &depl3Replicas,
+				},
+			},
+			Want: metadata + `
+        kube_deployment_metadata_generation{deployment="depl3",namespace="ns3"} 0
+        kube_deployment_spec_paused{deployment="depl3",namespace="ns3"} 0
+        kube_deployment_spec_replicas{deployment="depl3",namespace="ns3"} 1
+        kube_deployment_status_condition{condition="Available",deployment="depl3",namespace="ns3",reason="unknown",status="true"} 0
+        kube_deployment_status_condition{condition="Available",deployment="depl3",namespace="ns3",reason="unknown",status="false"} 1
+        kube_deployment_status_condition{condition="Available",deployment="depl3",namespace="ns3",reason="unknown",status="unknown"} 0
+        kube_deployment_status_observed_generation{deployment="depl3",namespace="ns3"} 0
+        kube_deployment_status_replicas{deployment="depl3",namespace="ns3"} 0
+        kube_deployment_status_replicas_available{deployment="depl3",namespace="ns3"} 0
+        kube_deployment_status_replicas_ready{deployment="depl3",namespace="ns3"} 0
+        kube_deployment_status_replicas_unavailable{deployment="depl3",namespace="ns3"} 0
+        kube_deployment_status_replicas_updated{deployment="depl3",namespace="ns3"} 0
 `,
 		},
 	}