Are ovarian cysts dangerous?

Most are harmless and resolve on their own. Some need closer assessment. A specialist uses ultrasound and your history to decide what, if anything, is needed.

Do cysts need to be removed?

Usually not. Many are simply monitored. Removal is only considered in specific situations, decided with a specialist.

Ovarian Cysts: What They Are

Name: Ovarian Cysts: What They Are | Gynaec.com.au
Creator: Dr Priya Sivadas
Published: 2026-06-25

Ovarian cysts: what they are and assessment

Ovarian cysts are fluid-filled sacs on the ovary. They're very common, and most are harmless, often 'functional' cysts that come and go with the cycle.

This page explains what they are and how they're assessed.

Key points

Ovarian cysts are common and most are harmless.
Many are 'functional' and resolve on their own.
They're assessed with ultrasound and, sometimes, blood tests.
Sudden severe pain needs urgent care.

Last reviewed 25 June 2026

Sudden, severe pelvic pain (especially with nausea or vomiting) can signal a cyst complication such as ovarian torsion, which is a medical emergency. Seek urgent care.

Types and what they mean

Most cysts are functional and resolve by themselves. Some other types may need closer assessment, depending on their appearance and your situation.

Diagnosis: what to expect

Cysts are usually assessed with a pelvic ultrasound. Depending on the findings and your age, a specialist may suggest monitoring over time or, occasionally, blood tests or further assessment.

When to see a specialist

If a cyst is found on a scan, or you have ongoing pelvic pain, a specialist can explain what it means and whether anything is needed.

Frequently asked questions

Sources & further reading

This page is structured around information from reputable Australian health bodies:

More plain-language reading from Dr Sivadas.

Pelvic PainChronic pelvic pain PCOSPCOS diagnosis Adolescent GynaecologyOvarian cysts & anomalies Pelvic PainPainful sex

Written & medically reviewed by

Dr Priya Sivadas

FRANZCOG, CREI, MMed · Fertility and Gynaecology Specialist

Last reviewed: 25 June 2026

Read Dr Sivadas's profile

drpriyasivadas.com.au

Found an ovarian cyst?

Appointments are managed on the practice site.

Request an appointment

Consulting locations

Parramatta

Monash IVF

Level 2, 1 Fennell Street
Parramatta NSW 2151

Bella Vista

Norwest Private Hospital

Suite 106, 11 Norbrik Drive
Bella Vista NSW 2153

Penrith

Somerset Specialist Centre

Level 3/38 Somerset St
Penrith NSW 2747