What is it?
An ovarian cyst is a fluid-filled sac in or on an ovary. Functional cysts form as part of the normal menstrual cycle and usually disappear within a few cycles. Other types include endometriomas (linked to endometriosis), dermoid cysts and cystadenomas. Polycystic ovary syndrome (PCOS) is a separate hormonal condition with many small follicles on the ovaries.
Common symptoms
- Often none; many cysts are found by chance on a scan
- Pelvic pain or a dull ache on one side
- Bloating or a feeling of fullness
- Pain during sex
- Sudden, severe pain with nausea or vomiting, which can mean a cyst has burst or twisted and needs urgent care
How it's diagnosed
Cysts are assessed with a pelvic ultrasound. Dr Saadie may arrange a repeat scan in a few weeks to see if the cyst has gone, and sometimes blood tests, depending on the cyst's appearance and your age.
Treatment options
Small, simple cysts usually only need a follow-up scan. Cysts that are large, persistent, painful or unusual-looking may be removed by laparoscopy (keyhole surgery), which aims to keep as much healthy ovary as possible. Dr Saadie performs surgery for ovarian cysts and will explain whether it's needed in your case.
When to see a doctor
See your GP if you have ongoing pelvic pain or bloating. Go to an emergency department or call 000 for sudden severe pelvic pain, especially with fever, vomiting or fainting.
To see Dr Saadie, ask your GP for a referral, then request an appointment or call (02) 9894 9225.
More information
Other conditions
- Endometriosis
- Fibroids
- Heavy periods
- Prolapse and incontinence
- Cervical screening and colposcopy
- Menopause
- All gynaecology care
General information only, not a substitute for advice about your own health. Updated November 2026.