Basal cell carcinoma treatment
Ways of removing or destroying a basal cell carcinoma, the most common but rarely dangerous skin cancer, most often by minor surgery under local anaesthetic.
✓ Medically reviewed by a GMC-registered consultant · last reviewed September 2026 · next review September 2027 · how we review
In short
- BCC is the most common skin cancer; it grows slowly and very rarely spreads, but it still needs treating so it does not keep growing locally.
- Most BCCs are treated with minor surgery under local anaesthetic; treatment leaves a scar, larger for bigger lesions or those on the face.
- Mohs micrographic surgery is used for tricky or high-risk sites and gives a very high cure rate while sparing healthy skin.
- Cure rates are high, but new skin cancers can appear, so sun protection and skin checks remain important afterwards.
A plain-English summary. The detail — including risks and recovery — is below.
At a glance
A general guide. Your specialist will give you advice for your situation.
Removes or destroys the BCC so it does not keep growing and damaging nearby skin
Gentler non-surgical options (creams, cryotherapy, photodynamic therapy) are not suitable for high-risk, deep, recurrent or unclear-edged BCCs.
After surgery the wound is dressed and may be sore. You keep it clean and dry as instructed. With creams or photodynamic therapy, the treated skin becomes...
Clear wound-care or cream instructions and a contact number for problems.
After surgery the wound is dressed and may be sore. You keep it clean and dry as instructed. With creams or...
Stitches may be removed or dissolve. Pathology results from an excision usually come back, confirming whether the...
Most wounds heal over, though lower-leg wounds and grafts take longer. Crusting from non-surgical treatments...
Scars mature, soften and fade. Any follow-up or skin-surveillance plan is agreed, and you continue with sun...

What is basal cell carcinoma treatment?
Basal cell carcinoma (BCC), sometimes called a rodent ulcer, is the most common type of skin cancer. It usually grows slowly, is caused mainly by sun exposure over many years, and very rarely spreads to other parts of the body. It is almost never a danger to life, but if left untreated it can keep growing and damage nearby skin and tissue.
Treatment aims to remove or destroy the BCC completely. The most common treatment is minor surgery (excision) under local anaesthetic, where the lump and a margin of normal skin are cut out and sent to the laboratory to check it has all been removed. The wound is then stitched, left to heal, or sometimes closed with a skin graft or flap.
For BCCs in difficult areas — such as the nose, ear, lip or around the eye — or those with unclear edges or that have come back, a specialist technique called Mohs micrographic surgery may be used. This removes the cancer layer by layer, checking each layer under the microscope, to remove as little healthy skin as possible while achieving a very high cure rate.
Other options, suited to certain lower-risk BCCs, include curettage and cautery (scraping and sealing), freezing (cryotherapy), prescription creams, photodynamic therapy and, in selected cases, radiotherapy. The right choice depends on the type, size and site of the BCC.
Types, options & approaches
There may be different ways to do this. The right approach depends on the clinical question and your circumstances.
Surgery vs Mohs surgery
| Standard excision | Mohs surgery | |
|---|---|---|
| Best for | Most BCCs on lower-risk sites | Face, recurrent or unclear-edged BCCs |
| Margin checking | After surgery, in the lab | During surgery, layer by layer |
| Healthy skin removed | A set margin all round | As little as possible |
| Time needed | Often under an hour | Usually most of a day |
| Availability | Widely available | Specialist centres only |
Both have high cure rates. Your specialist will recommend the approach based on the BCC's type, size and site.
Preparing for your procedure
- See a GP about any scab that bleeds and will not heal, or a pearly or scaly patch or lump that is slowly growing.
- Tell the team about all your medicines, especially blood thinners, and any allergies to local anaesthetic or dressings.
- Mention any pacemaker or implanted device, as this affects the type of cautery that can be used.
- Ask which treatment is being recommended and why, and whether it will be done the same day.
- Arrange transport and time off if a larger excision, graft, flap or Mohs surgery is planned (Mohs can take most of a day).
- Plan for someone to help at home if the wound is on a hand, leg or prominent area.
- Bring a list of previous skin cancers or treatments if you have had any.
What happens
For most BCCs, the area is numbed with local anaesthetic and the lesion, plus a margin of normal skin, is removed. The wound is stitched, left to heal on its own, or closed with a skin graft or flap. The sample is sent to the laboratory to confirm the BCC has been fully removed, with results usually back in about two weeks.
With Mohs micrographic surgery, the visible cancer is removed and examined under the microscope while you wait. If any cancer remains at the edges, only that area is removed and checked again, layer by layer, until the edges are clear. The wound is then repaired, often the same day. This is why Mohs can take several hours.
Non-surgical treatments differ: curettage and cautery is done in one or more short sessions, cryotherapy is a brief freeze, creams are applied at home over weeks, and photodynamic therapy and radiotherapy involve attending for treatment sessions.
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.
May not be suitable if…
- Gentler non-surgical options (creams, cryotherapy, photodynamic therapy) are not suitable for high-risk, deep, recurrent or unclear-edged BCCs.
- Treating a lesion without confirming the diagnosis is unwise if there is any doubt it could be a different, more serious skin cancer.
- Destroying a BCC without examining tissue (for example freezing) is the wrong choice where edge-checking is important.
- Surgery may need adapting or rescheduling for people on blood thinners or with certain implanted devices.
Delay or rearrange if…
- There is an active skin infection at the site that needs treating first.
- Blood-thinning medicines need reviewing, though the BCC should still be treated in good time.
- The diagnosis is uncertain and a biopsy is needed before deciding treatment.
- Practical issues, such as wound care on the lower leg, mean timing should be planned.
- Other health problems need optimising before a longer procedure or general anaesthetic.
Alternatives to discuss
- Different treatment methods for the same BCC (surgery, Mohs, curettage, cryotherapy, cream, photodynamic therapy, radiotherapy).
- Active monitoring only in very selected cases, usually frail patients, after specialist discussion.
- Radiotherapy for people unable to have surgery or for certain sites.
- The NHS skin-cancer pathway as the standard route.
- Referral to a specialist Mohs centre for difficult or facial lesions.
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.
What matters most to me?
Think about symptoms, daily life, work, caring responsibilities, sport, fertility, travel, appearance and anxiety — the right choice depends on your priorities, not just the medical facts.
What are all my options?
Ask about waiting, monitoring, medicines, rehabilitation, a smaller or larger procedure, a different test, NHS referral, or a second opinion where that would help.
What would make me pause?
Active infection, pregnancy, unstable medical problems, smoking, medicines that increase bleeding, poor support at home, or feeling pressured are all reasons to slow down and get tailored advice.
What happens if I do nothing today?
For some problems, waiting is safe; for others, delay can make treatment harder. A good consultation should explain the trade-off in plain English.
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.
Benefits
- Removes or destroys the BCC so it does not keep growing and damaging nearby skin
- Surgical excision and Mohs surgery allow the edges to be checked, confirming the cancer is fully removed
- Mohs surgery offers a very high cure rate while sparing healthy skin in delicate areas
- Several options mean treatment can be tailored to the BCC's type, size and site
- Most people are cured, and treatment is usually a minor outpatient procedure
Risks & complications
- A permanent scar; larger BCCs and facial sites can leave more noticeable scars
- Pain, bruising and swelling around the wound while it heals
- Redness, soreness and crusting with creams, cryotherapy or photodynamic therapy
- A wound that takes weeks to heal, particularly on the lower leg
- Wound infection, bleeding or delayed healing
- A skin graft or flap not fully taking, needing further care
- Incomplete removal needing further surgery
- Numbness or altered sensation around the scar
- The BCC coming back at the same site, sometimes years later
- Noticeable change in shape of a nearby structure (such as an eyelid or lip) after surgery in delicate areas
- A reaction to general anaesthetic where it is used
- Pigment change or longer-term skin damage after radiotherapy
BCCs are rarely dangerous, but the trade-offs are about cure rate and the scar. Treatments that check the edges (surgery and especially Mohs) have the lowest chance of the cancer returning; some non-surgical options are gentler but are only suitable for lower-risk lesions and may have higher recurrence. Ask why a particular treatment is being recommended, what the cure rate is for your BCC, and what the scar is likely to look like.
Published figures to discuss
Cure and recurrence rates depend on the BCC's type, size, site and the treatment used, so single figures can mislead. Edge-checking surgery, especially Mohs, has the highest cure rates; some non-surgical options trade a higher chance of recurrence for avoiding a cut. Reliable head-to-head numbers are limited for some treatments.
| Figure | Reported range | How to interpret it | Source / confidence |
|---|---|---|---|
| Recurrence after Mohs surgery (including high-risk BCCs) | About 1-2% in reported series | Among the highest cure rates available; used for difficult or delicate sites. | Curettage and cautery vs excision for low-risk BCC (randomised trial, PMC)ncbi.nlm.nih.govPublished figure |
| Recurrence after non-surgical treatment | Higher than margin-controlled surgery, especially for thicker, recurrent or high-risk-site BCCs | Creams, curettage and PDT can be excellent for selected superficial lesions, but they are not interchangeable with surgery for aggressive subtypes. | Curettage and cautery vs excision for low-risk BCC (randomised trial, PMC)ncbi.nlm.nih.govSource-linked context |
| Wound-healing problems after excision or Mohs | Uncommon in low-risk patients; higher with smoking, diabetes, anticoagulants and lower-leg sites | Good consent should cover scar direction, flap/graft possibility, bleeding, infection and what happens if margins are positive. | Curettage and cautery vs excision for low-risk BCC (randomised trial, PMC)ncbi.nlm.nih.govSource-linked context |
| Lifetime BCC risk in fair-skinned people | Around 3 in 10 (per patient leaflet figures) | Explains why having one BCC makes further skin cancers more likely and why sun protection and follow-up matter. | Curettage and cautery vs excision for low-risk BCC (randomised trial, PMC)ncbi.nlm.nih.govSource-linked context |
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
Recovery depends on the treatment and the site. A small excision heals quickly; a graft, flap or wound on the lower leg takes longer, and creams or photodynamic therapy cause a period of soreness and crusting as the skin heals.
- A tender, firm or red scar that softens and fades over months
- Bruising and swelling around the wound early on
- Crusting, redness and soreness with creams, cryotherapy or photodynamic therapy
- Slower healing on the lower leg
- Tightness or slight numbness near the scar
Aftercare
- Follow the wound-care and dressing instructions you are given, keeping the area clean and dry.
- Use any prescribed cream exactly as directed and expect a period of redness and crusting.
- Protect the healing skin from the sun and use high-factor sun protection long-term.
- Avoid knocking or stretching the wound, especially on a leg or near a joint.
- Watch the wound for signs of infection and take pain relief as advised.
- Attend follow-up for results and any skin checks.
- Learn to check your own skin and report any new or changing lesions.
- Clear written wound-care or cream instructions
- Date for results and any follow-up appointment
- Clinic contact number for problems
- High-factor sunscreen and sun-protection plan
- Help at home arranged if a graft, flap or leg wound is involved
- Dressings or supplies you have been told to get
Scars and how they heal
Treating a BCC leaves a mark or scar — this is expected, because the cancer has to be removed or destroyed. After surgical excision the scar is usually a thin line, but larger BCCs leave longer scars, and lesions on prominent areas such as the face can be more noticeable. Where a lot of skin is removed, the wound may be closed with a skin graft or flap, which looks and feels different from the surrounding skin. Curettage and cautery and cryotherapy can leave paler, sometimes less predictable scars, and lower-leg wounds heal more slowly. Mohs surgery aims to remove as little healthy skin as possible and to repair the wound so the scar is hidden as far as possible, but a scar still remains. All scars are red or firm at first and usually soften and fade over months.
⚠ Get urgent help if…
- Increasing redness, swelling, heat, throbbing or discharge from the wound (possible infection)
- Bleeding from the wound that does not stop with gentle pressure
- A graft or flap turning dark, very pale or coming away
- Severe or worsening pain after the first day or two
- Fever or feeling generally unwell after surgery
- The treated area not healing, or a lump or ulcer returning at the site
- Any new scaly patch, pearly lump or non-healing scab elsewhere on your skin
- A new or changing mole (which could be a different, more serious skin cancer)
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
A good result is complete removal of the BCC with the cancer cleared at the edges, a wound that heals well, and a scar that settles over time. BCCs can almost always be cured, especially when found early, and Mohs surgery in particular has a very high cure rate.
No treatment can promise the cancer will never return or that you will never get another skin cancer. Because people who have had one BCC are more likely to develop others, ongoing sun protection and skin awareness are an important part of a good outcome.
Most BCCs are cured by appropriate treatment, and Mohs surgery has one of the highest cure rates, with only a small chance of the cancer returning even for difficult, high-risk lesions. Standard excision with clear margins also has a high cure rate. Recurrence is more likely with incompletely removed or high-risk BCCs and with some non-surgical treatments, which is why edge-checking matters. Having had one BCC raises the chance of developing further skin cancers over the years, so lifelong sun protection and skin checks are advised.
Related tests, treatments or support
Treatment is sometimes combined with checking and treating other sun-damaged areas or skin cancers found at the same time. Surgery may be combined with reconstruction (a graft or flap). For people with many or recurrent skin cancers, a longer-term skin-surveillance plan is often put in place alongside treatment.
Follow-up & long-term care
Many people with a low-risk, fully removed BCC are discharged after treatment with advice on sun protection and self-examination. Follow-up is arranged for higher-risk or recurrent BCCs, incomplete removal, or for people prone to multiple skin cancers. Any non-healing area, recurrence at the site, or new suspicious lesion should be reported promptly.
- Use high-factor sun protection and avoid sunburn and sunbeds for life.
- Check your own skin regularly and report new or changing lesions.
- Attend any follow-up appointments arranged for higher-risk cases.
- Keep a record or photos of treated and new areas to spot changes.
- Seek prompt review of any non-healing scab, pearly lump or scaly patch.
Repeat, follow-on and what comes next
- If an excision does not fully clear the BCC, further surgery may be needed.
- Non-surgical treatments have a higher chance of the BCC returning and needing re-treatment.
- Reconstruction (graft or flap) may occasionally need revision.
- People prone to skin cancer often need treatment of new lesions over time.
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
- Clear wound-care or cream instructions and a contact number for problems.
- A results process confirming the BCC was fully removed.
- Prompt review of any non-healing area, wound problem or recurrence.
- Teaching on skin self-examination and what to report.
- Lifelong sun-protection advice and a follow-up plan for higher-risk patients.
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:
- The treatment chosen (excision, Mohs surgery, curettage, cryotherapy, cream, photodynamic therapy or radiotherapy)
- The size and site of the BCC and how complex the removal is
- How the wound is closed (direct stitching, skin graft or flap)
- Whether Mohs micrographic surgery is needed (a longer, specialist procedure)
- Laboratory (histopathology) reporting to confirm clearance
- Anaesthetic type and any facility fees
- Follow-up appointments and treatment of any other lesions found
- The surgeon's or dermatologist's fee and which treatment is included
- Laboratory (histopathology) costs for checking the edges
- Whether reconstruction (graft or flap) is included if needed
- Anaesthetic and facility fees
- Whether Mohs surgery and its repair are covered, and the likely time involved
- Follow-up appointments and what happens if removal is incomplete
- How any complication or recurrence would be handled and charged
On the NHS? Basal cell carcinoma is diagnosed and treated on the NHS; private care may be used for speed or choice of provider, but the same range of treatments applies and treatment should be guided by the type and site of the lesion.
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.
Consent traps
- Choosing a gentler treatment without explaining its higher recurrence risk.
- Not warning about the scar, graft or flap, especially on the face.
- Treating without confirming the diagnosis where there is any doubt.
- No clear plan for checking the edges or for follow-up.
- Implying treatment guarantees no recurrence and no future skin cancers.
Marketing red flags
- 'Scarless' removal of skin cancers
- Treating skin cancers with lasers or cosmetic devices without histology
- Promising a guaranteed cure with no chance of recurrence
- Recommending the gentlest option for a high-risk lesion to avoid a scar
- No mention of follow-up or future skin-cancer risk
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.
Questions to ask your medical professional
Take this to your consultation. A good specialist will welcome every one of these.
- What type and size of BCC do I have, and which treatment do you recommend and why?
- What is the likely cure rate with this treatment for my BCC?
- Will the edges be checked to confirm it is fully removed?
- What will the scar look like, and how will the wound be closed?
- Do I need Mohs surgery because of where the BCC is?
- Will I be followed up, and what should I watch for afterwards?
- 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?
Frequently asked questions
Is a basal cell carcinoma dangerous?
Is treatment available on the NHS?
Will I have a scar?
What is Mohs surgery and who needs it?
Can a BCC be treated with cream instead of surgery?
Can a basal cell carcinoma come back?
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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: British Association of Dermatologists — Basal cell carcinoma (patient leaflet) Primary Care Dermatology Society — Basal cell carcinoma North Bristol NHS Trust — Mohs micrographic surgery (patient information) Curettage and cautery vs excision for low-risk BCC (randomised trial, PMC)
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.
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