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 e2cd30d..58de6df 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
@@ -79,6 +79,7 @@ public class PatientWeightServiceImpl extends BaseServiceImpl implements Patient
             pw.setWeights(weights);
             pw.setDayWeights(dayWeights);
             pw.setNowWeight(patientWeight.getNowWeight());
+            pw.setBmi(getBmi(patientWeight.getNowWeight(), pw.getBeforeHeight()));
             Update update = MongoConvertHelper.convertToNativeUpdate(ReflectionUtils.getUpdateField(pw));
             mongoTemplate.updateFirst(Query.query(Criteria.where("id").is(pw.getId())), update, PatientWeight.class);
             return RespBuilder.buildSuccess(pw.getId());