The Bartholin glands are two small glands located on either side of the vaginal opening in females. They are responsible for producing a fluid that helps lubricate the vagina during sexual arousal. Each gland is about the size of a pea and is situated near the vaginal wall. These glands can sometimes become blocked or infected, leading to a condition known as a Bartholin cyst. If the cyst becomes large or painful, it may require medical treatment. Overall, the Bartholin glands play a key role in female reproductive health by contributing to vaginal lubrication.