Tests & procedures · UK
Ovarian screening: understanding the limits
Why there is no national ovarian cancer screening programme, what the trial evidence showed, and what high-risk women can do.
Key points
-
The tests available, CA-125 blood testing and transvaginal ultrasound, are the same ones evaluated in major screening trials; symptom awareness and genetic risk assessment complete the picture.
-
No special preparation is needed for CA-125 or ultrasound; timing away from menstruation reduces benign CA-125 elevation.
-
Blood results return within days and ultrasound is reported at or soon after the scan.
-
Any screening in high-risk women should be coordinated by a gynaecological oncology or genetics service rather than bought ad hoc.
-
The UKCTOCS trial, following over 200,000 women, found that annual screening detected cancers earlier but did not reduce deaths from ovarian cancer, which is why no UK programme exists.
About this test
Published 2026-09-27 · Next review 2027-09-27
This page owes women honesty: general-population ovarian cancer screening does not currently work. The largest trial ever conducted found no mortality benefit from annual CA-125 and ultrasound screening, and false positives led to surgery in women without cancer. That is not a counsel of despair: symptom awareness (persistent bloating, early fullness, pelvic pain, urinary change) genuinely aids earlier diagnosis, and women at high genetic risk have real options, including risk-reducing surgery after childbearing.
Women worried about risk should start with family history assessment via their GP or a private genetics service; those with symptoms need prompt investigation, not screening. Waiting lists for NHS outpatient assessment remain long in much of the UK, and many of these checks are not offered on the NHS at all unless you meet strict criteria. Private clinics can usually see you within days on a self-pay basis, with no GP referral needed in most cases.
Frequently asked
Common questions about Ovarian screening: understanding the limits.
Quick, plain-English answers to what people ask us most.
-
What does "Ovarian screening: understanding the limits" cover?
This page explains a practical aspect of understanding, managing, or acting on your test results, rather than describing a specific test itself. The aim is to help you make sense of the process and know what questions to ask. It is general information and not a substitute for advice from your own doctor.
-
Why does this matter for patients?
Understanding this part of the testing process can help you feel more confident interpreting results, knowing what to expect, and having a more productive conversation with your doctor. Many patients find lab reports and result letters confusing, so having context can reduce unnecessary worry. It also helps you know when something genuinely needs following up.
-
Do I need to do anything specific myself?
In most cases, no special action is required beyond keeping a record of your results and any advice you have been given. If you are trying to track results over time, keeping a simple personal record can be helpful. Always follow any specific instructions given by your own doctor or specialist.
-
What should I expect from a results conversation with a doctor?
A good results conversation should explain what your result means in plain language, how it compares to what is expected, and what, if anything, happens next. You should feel able to ask questions and get a clear next step, whether that is reassurance, monitoring, or further testing. If anything is unclear, it is reasonable to ask for it to be explained again.
-
What if I don't understand my results?
It is always reasonable to ask your GP, specialist, or the provider who carried out the test to explain a result in plain terms. Reputable providers will usually offer a results consultation as part of the service rather than leaving you to interpret a report alone. Avoid relying solely on internet searches to interpret your own results, as context from your history matters.
-
How does this relate to NHS versus private care?
Both NHS and private pathways aim to give you an accurate result and a clear explanation, though private services often offer more flexibility around timing and a dedicated consultation to talk through findings. Private appointments are typically available within days, with cost varying by provider. Your GP remains a central point of contact regardless of where testing was done.
-
Is this information reliable and up to date?
This guidance reflects general, widely accepted principles of good clinical practice, but individual circumstances vary, and specific numbers or reference ranges can change between laboratories. Always check details relevant to your own results with the laboratory or clinician involved. If you are ever unsure, ask directly rather than assuming.
-
Can a private specialist help me with this?
Yes, a private specialist or GP can review your results, explain what they mean in context, and advise on appropriate next steps, often with an appointment available within a few days. Cost varies by provider. This can be particularly useful if you want a second opinion or a more detailed discussion than time allows on the NHS.
-
Where can I get further help?
Your GP is usually the best first point of contact for questions about your own results, and can refer you on if a specialist opinion is needed. Private providers also typically offer results consultations as part of their testing service. If something feels urgent, do not wait - seek medical advice promptly.