What is the best way of treating an ovarian cyst besides operation?

Ovarian cysts are common, and can arise from failed ovulation, endometriosis, as well as less commonly, abnormal cell growth. If the cysts are in general shown as non-complex, and are under 10 cm in size, they will often resolve spontaneously. If complex on ultrasound, biopsy is recommended. Suppression of cyst formation is achieved with oral contraceptive pill use.