Pilar cysts grow around hair follicles and usually appear on the scalp. They are small yellow, white, or discolored bumps that may be round or dome-shaped. They grow slowly and may disappear on their ...

A dermoid cyst is a fluid-filled sac near the surface of the skin that may have also hair, skin, or other tissues inside. These cysts form during a baby’s development before birth and usually need ...

If an ovarian cyst is left untreated, it will usually resolve on its own. However, a solid or partially solid cyst may need to be evaluated by a lab to make sure it isn’t cancerous. While most ovarian ...

Pilonidal sinus—also called a pilonidal cyst—is a skin infection that occurs in or around the crease of your buttocks. This condition happens when hair, skin cells, and dirt clog a hair follicle, ...

Boils are painful, pus-filled, and are caused by infections like Staphylococcus aureus. Cysts are painless, non-infectious growths filled with keratin or other substances. Antibiotics may treat boils ...

OUR resident specialist and NHS GP, Dr Zoe Williams, shares her expert advice. Today, Dr Zoe helps a reader who has a small lump on their back. You'll now receive top stories, breaking news, and more, ...