diff --git a/src/main/java/com/example/catchTheLetters/service/impl/AuthServiceImpl.java b/src/main/java/com/example/catchTheLetters/service/impl/AuthServiceImpl.java
index aa8a149..ba2df86 100644
--- a/src/main/java/com/example/catchTheLetters/service/impl/AuthServiceImpl.java
+++ b/src/main/java/com/example/catchTheLetters/service/impl/AuthServiceImpl.java
@@ -161,7 +161,7 @@ public class AuthServiceImpl implements AuthService {
         }
 
         // 如果用户名修改了，检查是否有重复，有重复则返回null，否则修改
-        if (user.getUsername() != null && !verify.getUsername().equals(user.getUsername())) {
+        if (user.getUsername() != null && (verify.getUsername() == null || !verify.getUsername().equals(user.getUsername()))) {
             var regedUser = getUserByName(user.getUsername());
             if (regedUser != null) {
                 return R.fail(HttpStatus.USERNAME_CONFLICT.getCode(), HttpStatus.USERNAME_CONFLICT.getDesc());
@@ -171,7 +171,7 @@ public class AuthServiceImpl implements AuthService {
         }
 
         // 如果邮箱修改了，检查是否有重复，有重复则返回null，否则修改
-        if (user.getEmail() != null && !verify.getEmail().equals(user.getEmail())) {
+        if (user.getEmail() != null && (verify.getEmail() == null || !verify.getEmail().equals(user.getEmail()))) {
             var regedUser = mongoTemplate.findOne(new Query(Criteria.where("email").is(user.getEmail()).and(CommonConstant.STATUS).ne(0)), User.class);
             if (regedUser != null) {
                 return R.fail(HttpStatus.USERNAME_CONFLICT.getCode(), HttpStatus.USERNAME_CONFLICT.getDesc());
@@ -181,7 +181,7 @@ public class AuthServiceImpl implements AuthService {
         }
 
         // 如果手机号修改了，检查是否有重复，有重复则返回null，否则修改
-        if (user.getPhone() != null && !verify.getPhone().equals(user.getPhone())) {
+        if (user.getPhone() != null && (verify.getPhone() == null || !verify.getPhone().equals(user.getPhone()))) {
             var regedUser = mongoTemplate.findOne(new Query(Criteria.where("phone").is(user.getPhone()).and(CommonConstant.STATUS).ne(0)), User.class);
             if (regedUser != null) {
                 return R.fail(HttpStatus.USERNAME_CONFLICT.getCode(), HttpStatus.USERNAME_CONFLICT.getDesc());