Differential Diagnosis for Non-Painful Bumps on Labia
Single Most Likely Diagnosis
- Follicular cysts: These are small, benign cysts that form when a hair follicle becomes blocked. They are common on the labia and are usually non-painful.
Other Likely Diagnoses
- Sebaceous cysts: Similar to follicular cysts, sebaceous cysts are benign and form from blocked oil glands. They can appear on the labia and are often non-painful.
- Fordyce spots: These are small, yellowish or white bumps that appear on the labia due to the presence of sebaceous glands. They are harmless and non-painful.
- Molluscum contagiosum: A viral infection that causes small, non-painful bumps on the skin, including the labia.
Do Not Miss Diagnoses
- Genital warts (HPV): Although often painless, genital warts can be a sign of a sexually transmitted infection and have implications for cervical cancer risk.
- Basal cell carcinoma or squamous cell carcinoma: Although rare, skin cancers can present as non-painful bumps on the labia. Early detection is crucial for effective treatment.
- Syphilis: The secondary stage of syphilis can cause non-painful bumps or rashes on the labia, making it essential to consider in the differential diagnosis.
Rare Diagnoses
- Vulvar intraepithelial neoplasia (VIN): A rare condition where abnormal cells form on the vulva, including the labia. It is often non-painful but can progress to cancer if left untreated.
- Bartholin gland cysts: Although typically painful, some Bartholin gland cysts may be non-painful. They form when the gland becomes blocked and can appear as a bump on the labia.
- Dermatofibromas: Benign growths that can appear as non-painful bumps on the labia, although they are more common on other parts of the body.