Open all pages about Ovarian cyst
Most ovarian cysts disappear in a few months without treatment. Large cysts or cysts causing symptoms may need to be surgically removed.
Ovarian cysts are fluid-filled sacs that can grow on the ovaries. Most cysts are harmless and disappear without treatment.
Most ovarian cysts are a normal part of the menstrual cycle. Some can be caused by abnormal cell growth or a condition such as endometriosis.
Page last reviewed: 10/12/2019
Next review due: 10/12/2022