Women’s health · Cervical screening
Cervical smear, HPV-primary testing for cervical cancer prevention.
The cervical smear is a quick sample from the cervix, tested first for high-risk HPV. If HPV-positive, cytology is reflex-tested. HPV-primary screening (offered by NHS since 2019) is more sensitive than cytology alone and has extended the screening interval to every 5 years.
Key facts
- 01
Definition
HPV-primary cervical screening from a liquid-based sample of cervical cells.
- 02
Who is offered it
NHS offers the test to women aged 25–64 in England.
- 03
Interval
Every 3 years (25–49) or every 5 years (50–64).
- 04
How the sample is tested
High-risk HPV first, with cytology run as a reflex test if HPV-positive.
- 05
Clinic visit
A quick, same-visit walk-in / walk-out appointment.
- 06
Result turnaround
A written result by letter in 2–4 weeks.
How it’s done
From booking to result — what happens, in order.
A short appointment, a soft brush and a lab-based HPV test. Here is the whole path from booking to letter.
- 01
Step 1
Book with GP or private clinic
Arrange your smear through your GP or a private women’s health clinic.
- 02
Step 2
Attend day 10–14 of cycle
Where possible, aim for mid-cycle — the sample is cleaner and easier to interpret.
- 03
Step 3
Empty bladder
Use the toilet before the exam so the speculum is more comfortable.
- 04
Step 4
Speculum inserted with lubricant
A small speculum is gently placed to visualise the cervix, with water-based lubricant.
- 05
Step 5
Cervix sampled with brush
A soft plastic brush is rotated on the cervix to collect cells — a few seconds.
- 06
Step 6
Sample placed in liquid medium
The brush head is dropped into liquid transport medium and sent to the lab.
- 07
Step 7
Report by post 2–4 weeks later
Your result letter explains the finding and any recommended next step.
Typical end-to-end: 2–4 weeks. Sample-taking itself: a few minutes.
What it shows
What a cervical smear can find.
HPV-primary screening answers two questions in order: is high-risk HPV present, and — if so — are the cells showing pre-cancerous change.
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High-risk HPV status
HPV 16, 18 or other high-risk types — negative or positive.
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Cervical intraepithelial neoplasia
Pre-cancerous change graded CIN 1–3 on cytology or biopsy.
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Atypical squamous cells
ASCUS or ASC-H — borderline changes needing follow-up.
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High-grade squamous intraepithelial lesion
HSIL cytology — a strong indication for colposcopy.
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Glandular abnormality
AGC or AIS — glandular changes needing urgent assessment.
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Suspicious for cervical cancer
Cytology raising concern for invasive disease — urgent referral.
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Insufficient sample
Not enough cells to report — the smear is simply repeated.
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Red flag: HSIL or invasive cancer on cytology — urgent colposcopy
A high-grade or invasive result triggers an urgent colposcopy pathway.
Next steps
What can follow a cervical smear.
The result letter names the next step. These are the paths patients most often take from here.
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Reassurance if HPV-negative
A negative high-risk HPV test with the routine screening interval next due.
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Repeat at 12 months
HPV-positive with normal cytology — repeat smear in 12 months to check clearance.
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Colposcopy
For high-grade cytology or persistent HPV — a detailed look at the cervix.
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LLETZ
Large loop excision of the transformation zone for confirmed high-grade CIN.
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Radical treatment for cervical cancer
Surgery, radiotherapy or chemoradiation coordinated by a gynae-oncology MDT.
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HPV vaccination if unvaccinated
Gardasil 9 as catch-up vaccination in eligible adults.
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Cascade family and partner discussion
Practical conversation about HPV, transmission and screening for household contacts.
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Structured follow-up per BSCCP
Test-of-cure and interval smears aligned with BSCCP national protocols.
Our vetted London network
A small panel of clinics, we picked them.
Partners across central, north, west and south London. Not listed publicly — introductions are made privately, once we understand your case.
Selection criteria
How we choose every clinic in our network.
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Consultant gynaecologists or accredited cervical screening nurses
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UK NHS-aligned HPV-primary testing with liquid-based cytology
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Colposcopy pathway with BSCCP-accredited colposcopists
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Onward gynae-oncology MDT pathway if invasive disease is found
Safety and eligibility
One of the safest tests in medicine.
A cervical smear is quick and very low risk. The practical points are timing, comfort and what to do about symptoms outside the sampled area.
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Quick and low-risk
A cervical smear takes a few minutes and is one of the lowest-risk gynaecological tests.
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Mild discomfort is normal
Brief pressure or cramping is expected; sharp pain is not — tell the clinician.
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Some spotting after
Light spotting for a day is normal and needs no treatment.
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Avoid mid-period
Heavy bleeding can obscure the sample — reschedule if your period is due.
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Pregnancy
Routine smears are usually deferred in pregnancy unless clinically indicated.
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Post-menopausal changes
A little more discomfort is common; vaginal oestrogen a week before can help.
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HPV-positive is common
Most HPV clears on its own — a positive result is not the same as cancer.
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A normal smear isn’t a full clear
A normal cytology doesn’t rule out disease outside the sampled area — report symptoms.
-
Report bleeding between periods
Post-coital or inter-menstrual bleeding needs assessment regardless of your last smear.
Reading your report
A smear report can look intimidating. It isn’t.
Whatever the finding, the letter keeps to the same four parts.
A quiet reminder
The report is written for your doctor, not for you — and that’s normal.
If you would like us to talk you through it before your follow-up, just ask.
- 01 Header
Sample details and clinical indication
Your details, the reason for the smear, and the date and technique used.
- 02 HPV result
High-risk HPV status
Whether high-risk HPV was detected, with the subtype where reported (16, 18, other).
- 03 Cytology
Reflex cytology if HPV-positive
Cell appearance graded from normal through borderline, low-grade and high-grade changes.
- 04 Impression
Recommendation and interval
The concrete next step: routine recall, repeat in 12 months, or colposcopy referral.
Red flags
When to seek urgent review.
Any of the following on a result or in your symptoms should trigger an urgent gynaecology or colposcopy referral.
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HSIL cytology
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Invasive cervical cancer
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Glandular abnormality (AGC / AIS)
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Persistent HPV with high-grade cytology
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Post-menopausal bleeding
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Post-coital bleeding
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Post-HIV screening abnormality
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Failed test of cure after LLETZ
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Recurrence after treatment
Recognised by major UK insurers
Cover depends on your policy and clinic; we confirm with your insurer before booking.
Frequently asked
Everything we get asked about cervical smears.
Quick answers on HPV-primary screening, intervals, comfort, HPV-positive results and colposcopy.
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What is HPV-primary cervical screening?
The lab tests your sample first for high-risk HPV — the virus that causes almost all cervical cancer. If HPV is not detected, no further testing is done and you return to routine recall. If HPV is detected, cytology is performed on the same sample as a reflex test to look for cell changes.
-
How often should I have a smear?
In England, women aged 25–49 are invited every 3 years, and women aged 50–64 every 5 years. If a smear shows HPV or abnormal cells, you may be recalled earlier.
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Does it hurt?
Most people find a smear uncomfortable rather than painful — a few seconds of pressure and mild cramping. Tell your clinician if you are anxious or have had painful smears before; smaller speculums and extra time make a real difference.
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What does HPV-positive mean?
It means high-risk HPV was detected in your sample. Most infections clear on their own within 1–2 years. If cytology is normal you will be recalled in 12 months; if abnormal cells are also found, you will be referred for colposcopy.
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When is a colposcopy needed?
For high-grade cytology (HSIL), any glandular abnormality, or persistent HPV with abnormal cells. Colposcopy is a magnified look at the cervix with targeted biopsy where needed.
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What if I am under 25 or over 65?
NHS screening is offered from 25 to 64. Outside those ages, screening is not routine — but any post-coital, inter-menstrual or post-menopausal bleeding needs assessment regardless of age.
Sources
- NHS Cervical Screening Programme.
- NICE. Cervical cancer guidance.
- British Society for Colposcopy and Cervical Pathology (BSCCP).
- World Health Organization. Cervical cancer elimination strategy.
Published 2026-07-30 · Next review 2027-07-30 · Reading time ~6 min
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In practice, in London
How cervical smear tends to unfold when you go private
With cervical smear, the London question is usually about report turnaround and the radiologist reading it — not whether the scan is available. Waiting lists on the NHS for cervical smear vary widely by borough and by how the GP letter reads. Privately in London, we can normally offer a slot inside the same week, sometimes within 48 hours if there’s a cancellation. The difference isn’t clinical quality — the consultants are frequently the same faces you’d see on the NHS — it’s the calendar.
In practice, a private cervical smear appointment in London means a named consultant, a proper hour in the room (or the equivalent on a video call), and a report you can actually read. Most of the imaging suites and endoscopy units we use sit within a mile of Harley Street or in Chelsea and Fulham, and turnaround on findings is measured in days, not weeks. For cervical smear specifically, the difference between a routine report and a sub-speciality read is where private care earns its keep.
There are a lot of consultants in London who can technically handle cervical smear. Fewer who do it week in, week out for the exact question you’re bringing. We spend most of our time working out which is which — and being straight when a different test or a different specialist would serve you better. Everything runs to CQC, GMC and Royal College standards; the choice is about fit, not floor.
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