Most ovarian cysts are benign (noncancerous), and are typically caused by hormonal changes, pregnancy, or conditions like endometriosis. The most common type of ovarian cyst, known as a functional or ovulatory cyst, is completely normal. It develops every month when you ovulate.

When should I be concerned about an ovarian cyst?

Serious cyst concerns

If you have pelvic pain with fever, nausea, and vomiting, it could be a sign you have an infection associated with the cyst. An infection deserves immediate medical attention. Cysts can also rupture or twist — a condition called torsion.

What is the main cause of ovarian cyst?

The main causes of ovarian cysts may include hormonal imbalance, pregnancy, endometriosis, and pelvic infections. Ovarian cysts are sacs of fluid that form on either the ovary or its surface. Women possess two ovaries which sit on either side of the uterus.