diff --git a/platform-common/src/main/java/com/lyms/platform/common/utils/DateUtil.java b/platform-common/src/main/java/com/lyms/platform/common/utils/DateUtil.java
index f5a386f..698f081 100644
--- a/platform-common/src/main/java/com/lyms/platform/common/utils/DateUtil.java
+++ b/platform-common/src/main/java/com/lyms/platform/common/utils/DateUtil.java
@@ -1190,7 +1190,7 @@ public class DateUtil {
      * 主要用于年龄查询
      *   Date start = DateUtil.getBeforeAge(age);
         Date end = DateUtil.getBeforeAge(age + 1);
-         pCriteria.and("birth").gte(end).lt(start);
+         pCriteria.and("birth").gte(end).lte(start);
      * @param age
      * @return
      */
diff --git a/platform-operate-api/src/main/java/com/lyms/platform/operate/web/service/impl/PatientWeightServiceImpl.java b/platform-operate-api/src/main/java/com/lyms/platform/operate/web/service/impl/PatientWeightServiceImpl.java
index 718d79e..e4fc9bc 100644
--- a/platform-operate-api/src/main/java/com/lyms/platform/operate/web/service/impl/PatientWeightServiceImpl.java
+++ b/platform-operate-api/src/main/java/com/lyms/platform/operate/web/service/impl/PatientWeightServiceImpl.java
@@ -146,7 +146,7 @@ public class PatientWeightServiceImpl extends BaseServiceImpl implements Patient
         if(age != null) {
             Date start = DateUtil.getBeforeAge(age);
             Date end = DateUtil.getBeforeAge(age + 1);
-            pCriteria.and("birth").gte(end).lt(start);
+            pCriteria.and("birth").gte(end).lte(start);
         }
         List<Patients> patients = mongoTemplate.find(Query.query(pCriteria), Patients.class);
         List<String> ids = new ArrayList<>();
@@ -973,6 +973,9 @@ public class PatientWeightServiceImpl extends BaseServiceImpl implements Patient
      * 获取两个体重之间相差的数值
      */
     private Double getDiff(String before, String now) {
+        if(StringUtils.isEmpty(before) || StringUtils.isEmpty(now)) {
+            return 0D;
+        }
         Double b = Double.parseDouble(before);
         Double n = Double.parseDouble(now);
         return MathUtil.doubleFormat2(n - b);