Why Do I Have a Big Bump on My Lip?

There are several possible reasons for a large bump on your lip:

• Mucocele: This is one of the most common causes of lip swelling. Mucoceles are cysts that form when a salivary gland becomes blocked or damaged, causing saliva to collect under the tissue. They typically appear as soft, painless, bluish or clear bumps and can range in size. These often develop after accidentally biting your lip or other minor trauma.
• Benign Tumors: Various types of benign (non-cancerous) growths can develop on the lips. These include fibromas, papillomas, and hemangiomas, among others. They usually grow slowly and don't spread to other parts of the body.
• Cysts: Different types of cysts can form in the lip tissue, including epidermoid or dermoid cysts. These are typically painless unless infected.
• Inflammatory Reactions: Swelling can occur in response to allergies, infections, or irritation from certain foods, dental products, or cosmetics.

The location (upper or lower lip), appearance, texture, and whether the bump is painful can help determine its cause. If you have a persistent or concerning bump on your lip, it's best to consult a healthcare provider for proper diagnosis and treatment.