A 27-year-old man will have a scar on his face for the rest of his life, after what he thought was a pimple turned out to be an infected cyst. In late 2024, Kai Davidson noticed a small lump on ...

The cyst can also become infected and form an abscess, or a painful, puss-filled pocket. Once branchial cysts begin growing, doctors will advise immediate removal to prevent further infection.

Pilar cysts form when they fill with keratin, a protein found in skin cells. In the January video, Lee pointed out curly hairs around the patient's pilar cyst, which was located on the back of ...