Kai Davidson required two surgeries to remove the cyst and the infection, which was causing it to double in size every day.

Pilonidal sinus is a skin condition that causes infected and ingrown hairs around the crease of the buttocks, usually leading to a cyst or abscess.

A Bartholin cyst is a noninfected fluid-filled sac, while a Bartholin abscess is an infected and inflamed cyst filled with pus. While both conditions involve the Bartholin’s glands, each has ...

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.