The ovaries are part of the female reproductive system. They’re located in the lower abdomen on both sides of the uterus. Women have two ovaries that produce eggs, as well as the hormones estrogen and progesterone. Most women will experience a cyst on the ovaries at least once, and most are painless, cause no symptoms, and are discovered during a routine pelvic exam. Symptoms of an ovarian cyst include nausea, vomiting, bloating, painful bowel movements, and pain during sex. In rare cases, an ovarian cyst can cause serious problems, so it’s best to have it checked by your doctor. There are various types of ovarian cysts, such as dermoid cysts and endometrioma cysts. However, functional cysts are the most common type. The two types of functional cysts include follicle and corpus luteum cysts.