diff --git a/platform-dal/src/main/java/com/lyms/platform/query/PatientsQuery.java b/platform-dal/src/main/java/com/lyms/platform/query/PatientsQuery.java
index 41823f9..a365cef 100644
--- a/platform-dal/src/main/java/com/lyms/platform/query/PatientsQuery.java
+++ b/platform-dal/src/main/java/com/lyms/platform/query/PatientsQuery.java
@@ -431,7 +431,7 @@ public class PatientsQuery extends BaseQuery implements IConvertToNativeQuery {
         boolean isAddStart = Boolean.FALSE;
         Criteria c = null;
         if(null!=lastMensesStart){
-            c = Criteria.where("lastMenses").gte(dueDateStart);
+            c = Criteria.where("lastMenses").gte(lastMensesStart);
             isAddStart = Boolean.TRUE;
         }
         if (null != lastMensesEnd) {