A Bartholin's cyst is forme when a Bartholin's gland is blocked, causing a fluid-filled cyst to develop. A Bartholin's cyst is not an infection, although it can be caused by an infection, inflammation, or physical blockage (mucus or other impediment) to the Bartholin's ducts (tubes which lead from the glands to the vulva). If infection sets in, the result is a Bartholin's abscess. If the infection is severe or repeated a surgical procedure known as marsupialization may be required to stop further recurrences.