diff --git a/src/ui/Bl-gym-mobile/src/screens/CreateUserScreen/action.ts b/src/ui/Bl-gym-mobile/src/screens/CreateUserScreen/action.ts
index e69de29..3529d70 100644
--- a/src/ui/Bl-gym-mobile/src/screens/CreateUserScreen/action.ts
+++ b/src/ui/Bl-gym-mobile/src/screens/CreateUserScreen/action.ts
@@ -0,0 +1,40 @@
+import axios from "../../api/GymApi";
+
+interface UserCreationResult{
+    Success: boolean,
+    Errors: string[]
+}
+
+export function handleCreateUser(
+    firstName: string,
+    lastName: string,
+    email: string,
+    password: string,
+    phoneNumber: string | null
+): Promise<UserCreationResult>{
+    return axios.post('api/user', {
+        firstName,
+        lastName,
+        email,
+        password,
+        phoneNumber,
+    }).then(response => {
+
+        if (response.status == 200)
+            return {
+                Success: true,
+                Errors: []
+            }
+
+        if (response.status == 403)
+            return {
+                Success: false,
+                Errors: ['Usuário já existente.']
+            }
+
+        return {
+            Success: false,
+            Errors: ['Falha ao criar usuário.']
+        }
+    })
+}
\ No newline at end of file
diff --git a/src/ui/Bl-gym-mobile/src/screens/CreateUserScreen/index.tsx b/src/ui/Bl-gym-mobile/src/screens/CreateUserScreen/index.tsx
index 608c97a..106a298 100644
--- a/src/ui/Bl-gym-mobile/src/screens/CreateUserScreen/index.tsx
+++ b/src/ui/Bl-gym-mobile/src/screens/CreateUserScreen/index.tsx
@@ -1,6 +1,7 @@
 import React, { useState } from 'react';
-import { View, Text, TextInput, Button, StyleSheet, Alert } from 'react-native';
+import { View, Text, TextInput, Button, Alert } from 'react-native';
 import styles from '../LoginScreen/styles';
+import { handleCreateUser } from './action';
 
 const CreateUserScreen = () => {
   const [firstName, setFirstName] = useState('');
@@ -9,13 +10,21 @@ const CreateUserScreen = () => {
   const [password, setPassword] = useState('');
   const [phoneNumber, setPhoneNumber] = useState('');
 
-  const handleSubmit = () => {
+  const handleSubmit = async () => {
     if (!firstName || !lastName || !email || !password || !phoneNumber) {
-      Alert.alert('Error', 'All fields are required.');
+      Alert.alert('Falha', 'Adicione os campos necessários.');
       return;
     }
-    // Handle user creation logic here
-    Alert.alert('Success', 'User created successfully!');
+    
+    var result = await handleCreateUser(firstName, lastName, email, password, phoneNumber);
+
+    if (result.Success){
+      //
+      // Successfully created, going to the next page
+      //
+    }
+
+    Alert.alert("Falha", result.Errors.join('\n'));
   };
 
   return (