What should you know about sebaceous cysts on the neck?

Many people use sebaceous cyst to describe an epidermoid cyst, a sac containing keratin beneath the skin. It may feel like a smooth, round, movable lump and may have a small central opening. Neck lumps can also come from swollen lymph nodes, inflamed follicles, or other causes, so location alone cannot identify one. Compare the lump with guidance about [Skin Lumps](/symptoms/skin-lumps/), and arrange an examination if you are unsure.

Do not squeeze, lance, or repeatedly massage a neck lump. Collar friction, necklaces, and shaving can irritate the skin, so avoid these over the area when possible. A clinician may monitor a quiet cyst or discuss [Cyst Removal](/treatments/surgical-dermatology/cyst-removal/) if it is recurrent, uncomfortable, or cosmetically bothersome. An inflamed cyst may be considered for [Steroid Injection Into The Skin](/treatments/injectables/intralesional-steroid-injection/) after assessment.

Arrange review for a neck lump that persists, grows, feels fixed, or changes in appearance. Seek prompt care if it becomes hot, red, rapidly swollen, or very painful, or if drainage, fever, or difficulty swallowing develops. If infection has formed a collection, [Abscess Drainage](/treatments/minor-procedures/abscess-drainage/) may be needed.

Does the lump sit in the skin or deeper in the neck? Does it have features of an epidermoid cyst? What changes should I record? Would observation or removal be more suitable for its position?