Ovarian cyst

Ovarian cysts are common and most are simple functional cysts that form as part of the cycle and disappear on their own. Clinics often scan for cysts before starting stimulation because a large cyst may delay a cycle. Sudden severe one-sided pelvic pain with nausea or vomiting needs urgent medical assessment, as it can indicate a cyst complication or ovarian torsion.

Also known as: cyst on ovary, functional cyst

Last reviewed: 8 September 2026. Written by the Antega Editorial Team. General information only — always follow the advice of your own clinic, doctor or pharmacist.