diff --git a/app/repositories/session_memory_repository.py b/app/repositories/session_memory_repository.py
index 8577aad..89d8b3e 100644
--- a/app/repositories/session_memory_repository.py
+++ b/app/repositories/session_memory_repository.py
@@ -90,3 +90,19 @@ class SessionMemoryRepository:
 
         self.set_data(self._build_key(session_id), session)
         return True
+
+    def delete_session(self, session_id: str) -> bool:
+        """
+        Delete a session by its session_id.
+
+        Args:
+            session_id (str): The ID of the session to delete.
+
+        Returns:
+            bool: True if the session was deleted, False if it did not exist.
+        """
+        key = self._build_key(session_id)
+        if self.redis.exists(key):
+            self.delete_key(key)
+            return True
+        return False
diff --git a/app/services/session_service.py b/app/services/session_service.py
index 49a4b12..8effcdd 100644
--- a/app/services/session_service.py
+++ b/app/services/session_service.py
@@ -308,3 +308,8 @@ class SessionService:
             )
 
             self.answer_repository.create(userAnswer)
+
+        self.session_redis_repository.delete_session(session_id=session_id)
+        self.quiz_redis_repository.delete_quiz_for_session(session_id=session_id)
+        self.answer_redis_repository.delete_all_answers(session_id=session_id)
+        self.score_redis_repository.delete_scores(session_id=session_id)
\ No newline at end of file