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Tests & procedures · UK

Colposcopy: next steps after an abnormal smear

What happens at colposcopy, the possible findings and treatments, and what results mean for future screening.

Key points

  • Colposcopy is a magnified examination of the cervix using acetic acid to highlight abnormal areas, with biopsy of anything suspicious and, where needed, treatment by LLETZ excision at the same or a later visit.

  • Book outside your period where possible; you can eat and drink normally, and most women drive home afterwards.

  • The examination takes 15 to 20 minutes; biopsy results typically return within 2 to 4 weeks.

  • A colposcopist explains findings at the visit, and biopsy results with the follow-up plan are communicated in writing and reviewed against national guidance.

About this test

Published 2026-09-27 · Next review 2027-09-27

A colposcopy referral is a precaution, not a diagnosis: most women referred do not have cancer, and the majority of detected changes are low grade and monitored rather than treated. Where high-grade changes (CIN2 or CIN3) are confirmed, LLETZ treatment removes the affected tissue in minutes under local anaesthetic with cure rates above 90 per cent. A test-of-cure smear six months after treatment closes the loop.

NHS colposcopy operates within target waits after abnormal screening; private colposcopy offers earlier appointments and clinician continuity for those who want it. 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 Colposcopy: next steps after an abnormal smear.

Quick, plain-English answers to what people ask us most.

  • What does Colposcopy: next steps after an abnormal smear actually refer to?

    Colposcopy: next steps after an abnormal smear describes how doctors interpret a result that falls outside the typical expected range, and what that pattern might suggest. The meaning depends heavily on how far outside the range the result is, and what else is happening with your health at the time. It's a starting point for discussion with a doctor, not a diagnosis in itself.

  • What are the common causes of this kind of result?

    In many cases, an unusual result has a benign or temporary explanation, such as recent illness, dehydration, medication, diet, or normal biological variation. Less commonly, it can point towards a condition that needs further assessment or treatment. A doctor will consider the more common, less serious explanations first before investigating further.

  • Does an unusual result always mean something is wrong?

    No — results outside the reference range are relatively common and often turn out to be insignificant once repeated or put in context. Laboratory reference ranges are statistical averages, so a small percentage of healthy people will naturally fall outside them. What matters most is the trend over time and how the result fits with your symptoms and history.

  • What happens after this kind of result is flagged?

    Typically, a doctor reviews the result alongside your history and may recommend repeating the test, checking related markers, or arranging a specific follow-up investigation. In many cases, no action beyond monitoring is needed. You should always be given a clear explanation of what the next step is and why.

  • Should I be worried if I see this on my results?

    Seeing a result outside the normal range can understandably feel alarming, but on its own it's rarely a reason for immediate concern. The context — your symptoms, other results and medical history — makes far more difference than the number alone. Speaking to a doctor promptly is the best way to get a clear, individual answer rather than worrying based on the number alone.

  • How quickly should I follow up on this kind of result?

    Most flagged results are reviewed and explained within a few working days as part of the normal results process. If a result is significantly abnormal, clinics will usually flag it for more urgent doctor review and contact you sooner. If you haven't heard back within the expected timeframe, it's reasonable to contact the clinic to check.

  • Can retesting change the picture?

    Yes — repeating a test is one of the most common and useful next steps, since a single result can be affected by timing, hydration, illness or lab variation. A repeat test done under more controlled conditions (for example, fasting, or at a consistent time of day) often clarifies whether the original result reflects something persistent. Doctors will often wait for a second result before deciding on further action, unless the first result was significantly abnormal.

  • Is this something a private specialist can help interpret?

    Yes — a private consultation with a relevant specialist can give you a detailed, individual explanation of what your specific result pattern means. This can be particularly useful if you want a fuller discussion than time allows in a routine GP appointment. Cost for a specialist review varies by provider.

  • How reliable is the reference range used to flag this result?

    Reference ranges are based on population averages and can vary slightly between laboratories and demographic groups, including age and sex. A result just outside the range is generally less significant than one far outside it. Doctors take this variability into account rather than treating the range as an absolute cut-off.

  • How do I get a clear explanation of my own result?

    The most reliable way is to book a review with a doctor who can see your full result alongside your history and other tests. Private clinics can usually offer this kind of specialist review within a matter of days. Bring a list of any symptoms and current medications to make the discussion as useful as possible.