A new lump or bump on the scalp can be annoying, painful, or simply hard to identify on your own.
We examine whether it looks like a cyst, mole, benign growth, inflamed lesion, or something that needs biopsy.
Depending on the diagnosis, we may recommend observation, drainage, biopsy, or surgical removal.
What is a scalp growth?
A scalp growth is any new lump, bump or raised lesion on the scalp. Many are benign, but different conditions can look similar, so the diagnosis matters before removal or treatment.
Common causes of scalp lumps and growths
- Pilar cysts: firm, usually mobile cysts that commonly arise on the scalp.
- Epidermoid cysts: keratin-filled cysts that can become inflamed or drain.
- Seborrheic keratoses: benign growths that may look waxy, rough or stuck on.
- Lipomas: soft fatty growths beneath the skin.
- Moles and other benign growths.
- Actinic keratoses and skin cancers: especially important when a lesion is new, changing, bleeding or not healing.
When should a scalp growth be checked?
Arrange an evaluation for a growth that is rapidly enlarging, painful, repeatedly inflamed, draining, bleeding, ulcerated, changing color, fixed in place or simply different from your other spots.
How are scalp growths diagnosed?
Many scalp lesions can be recognized by examination. Dermoscopy, biopsy, culture or occasionally imaging may be used when the diagnosis is uncertain or the growth extends deeper than expected.
How are scalp cysts and growths treated?
Treatment depends on what the growth is. Options range from observation to injection, drainage, biopsy or surgical removal. An inflamed cyst may need the inflammation controlled before definitive removal is planned.
For a new or changing scalp lump, Book Appointment. You can also read about cyst removal and skin examinations.
If a scalp or skin cyst needs procedural removal, see Cyst Removal.