diff --git a/src/main/java/com/covas/Entity/UsersEntity.java b/src/main/java/com/covas/Entity/UsersEntity.java
index ef8d610..11d5f6d 100644
--- a/src/main/java/com/covas/Entity/UsersEntity.java
+++ b/src/main/java/com/covas/Entity/UsersEntity.java
@@ -8,6 +8,7 @@ import javax.persistence.Column;
 import javax.persistence.Entity;
 import javax.persistence.GeneratedValue;
 import javax.persistence.Id;
+
 import javax.persistence.Table;
 
 import com.covas.Classes.Hash;
@@ -56,6 +57,10 @@ public class UsersEntity extends PanacheEntityBase {
         return find("pseudo", pseudo).firstResult();
     }
 
+    public static UsersEntity findByEmail(String email){
+        return find("email", email).firstResult();
+    }
+
     public static void add(String pseudo, String email, String name, String firstName, LocalDate birth, String password, String roles){
 
         UsersEntity users = new UsersEntity();
diff --git a/src/main/java/com/covas/Json/UserExist.java b/src/main/java/com/covas/Json/UserExist.java
new file mode 100644
index 0000000..da737b8
--- /dev/null
+++ b/src/main/java/com/covas/Json/UserExist.java
@@ -0,0 +1,16 @@
+package com.covas.Json;
+
+import io.quarkus.runtime.annotations.RegisterForReflection;
+
+@RegisterForReflection
+public class UserExist {
+
+    public final Boolean email;
+    public final Boolean pseudo;
+
+    public UserExist(Boolean email, Boolean pseudo){
+        this.email = email;
+        this.pseudo = pseudo;
+    }
+    
+}
diff --git a/src/main/java/com/covas/Resources/UsersRessources.java b/src/main/java/com/covas/Resources/UsersRessources.java
index 633b592..3f4b8c4 100644
--- a/src/main/java/com/covas/Resources/UsersRessources.java
+++ b/src/main/java/com/covas/Resources/UsersRessources.java
@@ -9,6 +9,7 @@ import javax.annotation.security.RolesAllowed;
 import javax.inject.Inject;
 import javax.transaction.Transactional;
 import javax.ws.rs.core.SecurityContext;
+import javax.ws.rs.core.Response.Status;
 import javax.ws.rs.Consumes;
 import javax.ws.rs.CookieParam;
 import javax.ws.rs.DELETE;
@@ -26,6 +27,7 @@ import javax.ws.rs.core.Response;
 
 import com.covas.Classes.Hash;
 import com.covas.Entity.UsersEntity;
+import com.covas.Json.UserExist;
 import com.covas.Json.UserSingle;
 
 import io.quarkus.panache.common.Page;
@@ -150,10 +152,23 @@ public class UsersRessources {
     @Transactional
     public Response createUser(UsersEntity users) {
             Response.Status status = Response.Status.OK;
-            UsersEntity usersOrig = UsersEntity.findByPseudo(users.pseudo);
-            if (usersOrig != null) {
+            UsersEntity usersPseudo = UsersEntity.findByPseudo(users.pseudo);
+            UsersEntity usersEmail = UsersEntity.findByPseudo(users.email);
+            Boolean createUserBool = true;
+            Boolean pseudoExist = false;
+            Boolean emailExist = false;
+            if (usersPseudo != null) {
+                createUserBool = false;
                 status = Response.Status.UNAUTHORIZED;
-            } else {
+                pseudoExist = true;
+            }
+            if(usersEmail != null){
+                createUserBool = false;
+                status = Response.Status.UNAUTHORIZED;
+                emailExist = true;
+            }
+            UserExist userExist = new UserExist(emailExist, pseudoExist);
+            if(createUserBool) {
                 UsersEntity usersNew = new UsersEntity();
                 usersNew.name = users.name;
                 usersNew.pseudo = users.pseudo;
@@ -174,7 +189,7 @@ public class UsersRessources {
                     status = Response.Status.NO_CONTENT;
                 }
             }
-        return Response.status(status).build();
+        return Response.status(status).entity(userExist).build();
     }