Published on: 3/5/2025
A hard bump on your lip might be a benign (non-cancerous) growth called a fibroma from repeated irritation, or it could be a different type of lesion that sometimes needs checking by a doctor.
A hard bump on your lip is often a result of irritation or injury. When you accidentally bite or press on your lip a few times, your body can form a small lump called a fibroma. Fibromas are firm and smooth, and they form as a way for your body to heal after repeated trauma. While fibromas are usually harmless, there are other causes of hard bumps too. For example, some infections, including certain viral ones, can cause bumps or lesions in the mouth, but these usually come with other signs like blisters or pain. It is important to keep an eye on your bump. If it stays the same without causing discomfort or if it fades away on its own, it may not be a cause for concern. However, if the bump grows, changes color, or starts hurting, it is wise to visit a doctor for a check-up to rule out any more serious conditions.
(References)
Glick M, Stoopler ET, Lynch DP. Viral and fungal infections of the oral cavity in immunocompetent patients. _Infect Dis Clin North Am_. 1999;13(4):817-831.
Nallasivam KU, Sudha BR. Oral mucocele: Review of literature and a case report. J Pharm Bioallied Sci. 2015 Aug;7(Suppl 2):S731-3. doi: 10.4103/0975-7406.163516. PMID: 26538955; PMCID: PMC4606697.
Beaty CS, Short AG, Mewar P. Oral Mucosal Lesions, Immunologic Diseases. [Updated 2023 Nov 14]. In: StatPearls [Internet].
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