Ovarian cysts are very common in people who menstruate, with an estimated 10% to 30% of women — and potentially more — developing at least one in their lifetime. These fluid-filled sacs develop in or ...

What is a chocolate cyst? While not a widely known term, a "chocolate cyst" is a symptom of a more severe version of endometriosis, a condition in which tissues similar to those that line the uterus ...

Colino is a contributor for TIME. Colino is a contributor for TIME. Ovarian cysts, which are small fluid-filled sacs that develop in or on the ovaries, are very common and are usually harmless. In ...

Medically reviewed by Laura Young Ruptured ovarian cysts often cause mild or no symptoms.You can typically treat a cyst that ruptures with pain medication.Severe cases of ruptured ovarian cysts can be ...

A hemorrhagic ovarian cyst is a type of ovarian cyst that bleeds. Smaller cysts that do not cause symptoms may go away without treatment. However, a person may need surgery to remove a large or ...

A branchial cleft cyst is a birth abnormality that occurs on one or both sides of the neck. This atypical tissue may form fluid-filled sacs or passages that drain fluid on the neck surface. These ...

Ovarian cysts are fluid-filled sacs that form on or inside the ovaries for a variety of reasons. Often, they disappear on their own, but sometimes, they can grow very large, burst or cause an ovary to ...