What could a red bump on the inside of my lip mean?

A red bump inside your lip might be related to a few different issues. One possibility is an aphthous ulcer, often called a canker sore. These are small, painful sores that appear inside the mouth. They usually happen because of minor injuries, stress, or other triggers and usually go away on their own after about 1-2 weeks. Another possibility is a pyogenic granuloma. This condition is a benign growth which means it is non-cancerous. Such growths can occur due to irritation or a reaction to a small injury or trauma in the mouth. Less commonly blood vessel growths can appear as red bumps on the inside of the lip. If your bump becomes very bothersome, grows in size, or does not go away on its own, it is a good idea to see a healthcare provider for more guidance. To help identify what might be causing your symptoms, you can try our free AI symptom checker for personalized insights. Remember, this information is educational and not intended as professional medical advice.