A cyst is a sac or cavity that may be filled with pus, semi-solid material, or air. It doesn’t usually cause pain until it gets large. An abscess is a painful, red infection that’s filled with pus. A ...

When bacteria spreads to a cyst in one of the Bartholin’s glands, it can cause a buildup of pus and lead to an abscess. In most cases, drainage is necessary. The Bartholin’s glands are two small, ...