Treatment for abnormal cervical cells (LLETZ)

What is LLETZ treatment for abnormal cervical cells?

LLETZ (large loop excision of the transformation zone) is the most common treatment for pre-cancerous changes on the cervix. A thin wire loop, heated by an electric current, is used to remove the area of the cervix that contains the abnormal cells. It is usually done at a colposcopy clinic.

The abnormal cells (called CIN, or sometimes CGIN for glandular changes) are not cancer, but higher-grade changes have a real chance of turning into cervical cancer over years if left. Removing them prevents this in the great majority of cases — more than 9 in 10 people need no further treatment.

The removed tissue is sent to the laboratory, both to confirm the changes and to check the edges, so it gives information as well as treatment. LLETZ is usually done under local anaesthetic while you are awake, and most people go home within an hour or so.

Because it removes a small amount of cervix, it is worth knowing that removing a lot of tissue, or having repeated treatments, can slightly raise the risk of an early (preterm) birth in a future pregnancy. For most people, who have a small, single treatment, this risk is very low — but it is an honest part of the conversation, especially if you may want children in future.

Types, options & approaches

There may be different ways to do this. The right approach depends on the clinical question and your circumstances.

Options at a glance

These are the main approaches described in this guide. The right option depends on the diagnosis, your goals and what your clinician thinks is safe.

Preparing for your procedure

• Ask whether treatment will be done at the same visit as colposcopy, so you can plan.
• Tell the clinic if you are or might be pregnant, as treatment is usually delayed until after birth unless there is concern about cancer.
• Take simple painkillers such as paracetamol or ibuprofen about an hour before if advised.
• Eat normally beforehand if you are having local anaesthetic; you will be told about fasting only if a general anaesthetic is planned.
• Bring sanitary pads, as you will have bleeding afterwards.
• Arrange a lift home if you are having a general anaesthetic.
• Tell the team about any bleeding disorders or blood-thinning medicines.

What happens

The procedure is usually done at the colposcopy clinic. You lie on a couch with leg supports and a speculum is gently inserted, as for a smear. The clinician looks at the cervix with the colposcope and applies liquids to show the abnormal area.

Local anaesthetic is injected into the cervix; this can sting and may make your heart flutter or your legs feel shaky for a moment, which is normal. The heated wire loop then removes the abnormal area in one or more passes. You may feel pressure or hear the equipment, but the removal itself usually takes only a few minutes. Any bleeding from the cervix is sealed with heat.

The removed tissue is sent to the laboratory. You can usually get dressed and go home within an hour. If a general anaesthetic was used, you stay until you have recovered from it and should not drive that day.

Is this procedure right for me?

A good consultation should explore whether it's the right choice for you now — including reasons to wait or consider something else.

Before you decide

Use this as a shared-decision checklist. The aim is not just “can this be done?”, but whether it is right for you, now, with the risks and alternatives clearly understood.

Comfort, sedation or contrast choices

If local anaesthetic, sedation, contrast or pain relief is used, ask what is planned, why, and what it means afterwards.

Two things matter most to discuss. First, infection and bleeding can happen during the 4-week healing time, so know the warning signs. Second, the more cervix removed (depth) and the more treatments you have, the higher the chance of an early birth in a future pregnancy. If you may want children, ask how much tissue is being removed and whether a future pregnancy would need extra monitoring (such as a scan of the cervix).

Published figures to discuss

LLETZ is generally low risk and highly effective, but the figures that matter to share are the chance of needing further treatment, the risk of cervical narrowing, and the future preterm-birth risk, which rises with the amount of tissue removed and with repeated treatments. Reported ranges vary between studies, so they should be treated as cautious guides rather than precise odds.

These are literature figures, not a personalised prediction. Your own risks and likely benefits depend on your circumstances, your health, and how your care is carried out and followed up.

What happens afterwards

Most people feel well within a day or two and can return to normal activities quickly, but the cervix takes about 4 weeks to heal underneath. During that time, bleeding and discharge are expected and a few sensible precautions reduce the risk of infection.

• Light-to-moderate bleeding for a few days, then watery or brown discharge for up to 4 weeks
• Mild period-type cramps in the first day or two
• Discharge that changes colour as the cervix heals (sometimes coffee-granule-like)
• Feeling otherwise well and able to do most normal activities
• Some anxiety while waiting for the tissue results

Aftercare

• Use sanitary pads rather than tampons or menstrual cups until bleeding stops.
• Avoid sex until any bleeding has settled (usually about 4 weeks).
• Avoid baths, swimming and long soaks; showers are fine.
• Avoid heavy exercise and heavy lifting while you are bleeding.
• Take simple painkillers for cramps if needed.
• Watch for signs of infection: smelly or yellow/green discharge, increasing pain, or fever.
• Make sure you know when and how you will get your results.
• Attend the 'test of cure' HPV screen at around 6 months.

• Sanitary pads ready (no tampons for ~4 weeks)
• Simple painkillers at home
• A lift home arranged if you are having a general anaesthetic
• A note of when results are due and how you will get them
• The 'test of cure' appointment understood (around 6 months)
• The clinic's contact number saved for bleeding or infection concerns

⚠ Get urgent help if…

• Heavy bleeding (soaking a pad an hour, or passing large clots)
• Smelly, yellow or green discharge (possible infection)
• A high temperature or feeling shivery and unwell
• Severe or worsening lower tummy pain
• Bleeding that suddenly becomes much heavier rather than settling
• Bleeding that has not stopped well beyond about 4 weeks

Who to contact: your clinician, clinic or test provider first (keep their number to hand). For urgent advice when you can't reach them, call NHS 111. In an emergency, call 999.

General guidance — it doesn't replace the specific advice your specialist gives you.

Results & realistic expectations

Results on the removed tissue usually take about 4 to 8 weeks and confirm the grade of the changes (such as CIN1, CIN2, CIN3 or CGIN) and whether the edges were clear of abnormal cells. Clear edges and a high-grade change fully removed is the usual, reassuring outcome.

LLETZ is very effective — more than 9 in 10 people need no further treatment. A 'test of cure' HPV screen at about 6 months checks the treatment worked; if it is clear, you return to routine screening. If HPV or changes persist, you may be offered another colposcopy or treatment. Treatment lowers your risk of cervical cancer a great deal but, like screening, does not reduce it to zero, so ongoing screening still matters.

For most people one LLETZ clears the changes for good, confirmed by the test of cure. The cervix heals over a few weeks. Because HPV can persist or return and new changes can develop, you stay in cervical screening afterwards. If changes recur, repeat treatment is possible, but each additional treatment adds a little to the future preterm-birth risk, so this is weighed carefully.

Related tests, treatments or support

LLETZ is often combined with colposcopy in a single 'see-and-treat' visit. It is not combined with treatment of other gynaecological problems. If you have other gynaecological needs or symptoms, those are assessed separately.

Follow-up & long-term care

You are told whether all the abnormal area was removed and when to expect the tissue results, usually by letter within about 4 to 8 weeks. A 'test of cure' HPV screen is arranged at around 6 months, and if it is clear you go back to routine screening. Report bleeding or infection symptoms before then.

• Attend the 'test of cure' HPV screen at about 6 months.
• Continue routine cervical screening afterwards as advised.
• Stopping smoking lowers the chance of changes returning.
• In a future pregnancy, tell your midwife you have had LLETZ; extra monitoring of the cervix may be offered if a lot of tissue was removed or you had repeat treatments.
• Report any new abnormal bleeding or discharge promptly.

Repeat, follow-on and what comes next

• If the edges are not clear or HPV persists, a repeat treatment or colposcopy may be needed.
• Each additional treatment adds a little to the future preterm-birth risk, so repeats are weighed carefully.
• A 'test of cure' at about 6 months guides whether anything further is needed.
• Changes can recur years later, which is why screening continues.

Ask what happens if the result is unclear or needs repeating, and what is included if further tests or follow-up are needed.

What good aftercare looks like

• Written advice on expected bleeding/discharge and clear warning signs for infection or heavy bleeding.
• A named contact route for problems after treatment.
• Clear timing for tissue results and the 'test of cure' HPV screen.
• A note for future pregnancy care if a lot of tissue was removed or treatments were repeated.

What affects the cost

Costs vary a great deal between people and providers, and we don't publish prices. What matters is understanding what drives the cost and making sure your quote is complete. The main things that affect it:

• Whether you are treated on the NHS or choose to go privately
• Local versus general anaesthetic, which affects facility and theatre costs
• Whether treatment is done at the same visit as colposcopy or as a separate appointment
• Laboratory reporting of the removed tissue
• Follow-up appointments and the 'test of cure' HPV screen
• The colposcopist's fee and the clinic or facility fee

• Whether the procedure, anaesthetic, laboratory reporting and follow-up are included
• Whether the 'test of cure' HPV screen at 6 months is included
• What happens, and what it would cost, if a repeat treatment is needed
• How and when results are given, and by whom
• The clinician's and facility's fees set out clearly
• A named contact for bleeding or infection after treatment

On the NHS? LLETZ is provided free on the NHS after an abnormal screening result; private treatment is available mainly for speed or choice and follows the same standards.

You're entitled to your total cost in writing — including reports, follow-up and what happens if the result is inconclusive — before you decide.

Consent traps and marketing red flags

These are not small details. They are often where patients lose choice, time to reflect, or realistic expectations.

Choosing a specialist safely

• Check the specialist is on the GMC Specialist Register for this area.
• Make sure they work at a CQC-registered service, and look for membership of the relevant Royal College or professional body.
• You're entitled to time to consider and to have your questions answered before you agree — the specialist who looks after you should explain it, not a salesperson.
• Be wary of pressure: time-limited offers or deposits taken before you've had time to think are red flags, not bargains.
• You're entitled to your total cost in writing — including any follow-up — before you decide.

How Vuemedics verifies every consultant →

Take this to your consultation. A good specialist will welcome every one of these.

• How much cervix (what depth) are you planning to remove, and why?
• I may want children — how might this affect a future pregnancy, and would I need extra monitoring?
• Will this be done awake under local anaesthetic, or under general anaesthetic?
• When and how will I get the results, and what do clear or unclear edges mean?
• When is my 'test of cure' and what happens if HPV or changes persist?
• What are my warning signs for bleeding or infection, and who do I call?
• Are you on the GMC Specialist Register for this area, and which Royal College or professional body are you a member of?
• Will you be the specialist who carries out my procedure, and who looks after me afterwards?
• What are the risks for someone like me, and how often do your own patients have a problem or need it repeated or redone?
• What does a realistic result look like — and what can this procedure not achieve?
• What are my options, including waiting, doing nothing for now, or choosing a different approach?
• Can I have written information, results and aftercare instructions in a format I can use, including any accessibility or communication support I need?
• What is the total cost in writing, including any follow-ups, and how much time do I have to decide?

Find a verified specialist for treatment for abnormal cervical cells (lletz)

Every consultant is GMC-checked and independently reviewed. Search by postcode and distance, or switch to a map. Ordered by rating, relevance and recency — never by who pays.

How we made this page

Medically reviewed by a GMC-registered consultant. Written in plain English, checked against NHS, NICE, GMC and relevant Royal College / specialist-society guidance, and kept under review. No clinic paid to appear on this page, and we publish no pricing. This is general information to help you prepare — it is not a substitute for advice from your own clinician. How we review our guides →

Source hierarchy: UK regulator and NHS/NICE guidance first, then relevant Royal College or specialist-society guidance, then peer-reviewed evidence for procedure-specific figures where available.

Sources & standards: RCOG / Jo's Trust — LLETZ patient information NHS — Colposcopy (treatment and results) Comparative risk of preterm birth after cervical treatment — PMC Risk of preterm birth following surgical treatment for cervical disease — PMC RCOG Scientific Impact Paper — reproductive outcomes after local cervical treatment (PDF)

Reviews reflect patients' experience of care, not clinical outcomes. For procedure volumes and outcome data see PHIN.

Last medically reviewed 2026-09-21. Spotted something wrong or out of date? Report an error in this guide.