What should you know about a skin cancer lump on the scalp?

Hair follicles, cysts, inflamed skin, and [Boils](/conditions/boils/) can all create a tender or firm scalp swelling. Skin cancer can appear as a rough patch, a persistent sore, or a nodule that crusts, bleeds, enlarges, or becomes sore. Hair can hide surface changes, and repeated irritation from combing or headwear may obscure the history.

A clinician checks the lump, the overlying skin, nearby areas, and lymph nodes when appropriate. A biopsy may be needed to identify the cells involved; its result determines whether further treatment is needed.

Ask a dermatologist to assess a new scalp lump, especially if you cannot see it clearly or it has changed. Use a mirror or ask someone you trust to check the surface, and keep notes about bleeding, crusting, tenderness, and growth. Do not cut, burn, or squeeze it. Background information about [Skin Lumps](/symptoms/skin-lumps/) and [Basal Cell Carcinoma](/conditions/basal-cell-carcinoma/) may help you prepare. An injection used for an inflamed lesion is not a substitute for diagnosing a suspicious growth.

Arrange prompt review for bleeding, repeated scabbing, a sore that does not heal, a rapidly enlarging lump, or a change noticed beneath thinning hair. Seek urgent care if bleeding will not stop with firm pressure, or if swelling is accompanied by fever and spreading redness. Do not delay assessment because the lump is painless.

Ask whether the lump looks like a cyst, infection, or skin growth; whether biopsy is appropriate; how a scalp wound would be closed; and how to check the rest of your scalp between visits.