Dermatology · London
Shave biopsy, superficial skin sample for benign and non-melanoma lesions.
A shave biopsy takes a superficial disc of skin using a scalpel or dermablade under local anaesthetic - first-line for suspected benign lesions, seborrhoeic keratoses and non-melanoma skin lesions where full-thickness sampling is not needed.
Key facts
The six things to know about a shave biopsy.
A short orientation before the detail.
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Superficial skin shave biopsy
A thin disc of skin is removed with a scalpel or dermablade - epidermis and upper dermis.
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10-minute procedure
Under local anaesthetic in a dermatology clinic room. No theatre required.
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No sutures usually needed
Haemostasis is achieved with chemical cautery - the site heals as a shallow graze.
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Not for suspected melanoma
A superficial shave under-samples pigmented lesions. Melanoma needs full-thickness excision.
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Same-day dermatology procedure
Consultation, dermoscopy and shave in a single visit - you go straight home.
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Complements dermoscopy
Used when the clinical and dermoscopic picture points to a benign or non-melanoma lesion.
Indicative pricing
What a private shave biopsy costs in London.
Indicative ranges across UK private providers.
In short
A dermatology consultation plus shave biopsy: £380–£550, with histology usually within 5–10 working days.
| Procedure | Indicative range | Typical duration | Report turnaround |
|---|---|---|---|
| Dermatology consultation + shave biopsy | £380–£550 | 30 min | 5–10 working days |
| Additional shave biopsy (same visit) | £120–£220 | 10 min | 5–10 working days |
| Curettage + cautery of benign lesion | £280–£450 | 15 min | Same visit |
| Cryotherapy (per lesion) | £95–£180 | 5 min | Same visit |
| Punch biopsy | £280–£450 | 15 min | 5–10 working days |
| Excisional biopsy (suspected melanoma) | £650–£1,400 | 45 min | 5–10 working days |
Prices vary by clinic, number of lesions and whether additional treatment (cryotherapy, curettage) is added the same day.
The problem
A shave biopsy is only as good as the person choosing it.
The technique is quick - but the decision about which lesion, which depth and which lesion needs full-thickness excision instead is what protects you. That decision belongs to a consultant dermatologist.
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A raised or catching mole?
It is usually assessed dermoscopically and, if suitable, shaved in the same visit.
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A crusted or scaly patch?
A sample can distinguish actinic keratosis from early SCC.
How it works
From consultation to histology - what happens, in order.
One consultant dermatologist from first look to plan - often in a single visit.
Phase 1 · Before the shave
Consultation and dermoscopy
Phase 2 · On the day
~10 minutes in the clinic room
Phase 3 · After
Histology and plan
- 01
Before
Dermatology consultation
A consultant dermatologist takes the history, examines the lesion and reviews any change in size, shape or colour.
- 02
Before
Dermoscopy
A magnified, polarised look at the lesion - the single most important step in deciding whether a shave is safe.
- 03
On the day
Local anaesthetic
A small volume of lidocaine is injected under the lesion - a brief sting, then numb within a minute.
- 04
On the day
Shave sample taken
A scalpel or flexible dermablade removes a thin disc of skin flush with the surrounding surface.
- 05
On the day
Cautery for haemostasis
Aluminium chloride or light electrocautery stops any bleeding - sutures are not usually needed.
- 06
After
Histopathology review
The sample is sent to a consultant dermatopathologist - a written report usually within 5–10 working days.
- 07
After
Structured plan
Your dermatologist explains the diagnosis, whether further treatment is needed, and what to watch for.
Typical end-to-end: 1–2 weeks. In-clinic procedure: 10 minutes.
What it shows
When a shave biopsy is the right test.
Shave biopsy answers a specific question - what is this lesion, when a superficial disc is enough. These are the most common presentations.
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Seborrhoeic keratosis
Waxy, stuck-on brown lesions - the classic indication for a superficial shave.
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Basal cell carcinoma (BCC)
Diagnostic shave of a suspected BCC, prior to definitive excision or Mohs.
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Squamous cell carcinoma (SCC)
Superficial sampling of a keratotic or crusted plaque to confirm SCC.
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Actinic keratosis
Confirms actinic keratosis and rules out early invasive SCC on sun-damaged skin.
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Intradermal naevus
A raised, flesh-coloured naevus that catches on clothing - shaved for cosmetic reasons.
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Skin tag
A pedunculated fibroepithelial polyp - snip- or shave-excision for symptomatic tags.
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Verruca vulgaris
Shave used selectively for stubborn or diagnostically uncertain viral warts.
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Red flag: melanoma suspected - excisional biopsy instead
Any suspicion of melanoma is a full-thickness excisional biopsy, not a shave.
Treatment options
What follows a shave biopsy result.
The result decides the treatment. These are the options your dermatologist may recommend.
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Cryotherapy
Liquid nitrogen for superficial benign or pre-malignant lesions - quick, in-clinic.
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Curettage + cautery
Scoop-out plus haemostasis - first-line for many seborrhoeic keratoses and small BCCs.
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Topical 5-FU / imiquimod
Field treatment for actinic keratoses and superficial BCC - used over weeks.
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Photodynamic therapy
Light-activated therapy for AK and superficial BCC - good cosmetic outcomes.
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Wide local excision (BCC / SCC)
Definitive surgical excision with a defined margin, after diagnostic biopsy.
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Mohs micrographic surgery
Tissue-sparing excision with same-day margin control - face, high-risk sites.
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Structured dermatology follow-up
Scheduled surveillance for patients with a history of skin cancer or heavy sun damage.
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Multi-disciplinary team review
Skin-cancer MDT discussion for complex, recurrent or aggressive tumours.
Red flags
When a shave biopsy is the wrong test.
Shave biopsy is safe and quick - but it is superficial, and there are lesions where it under-samples the diagnosis.
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Melanoma suspected
ABCDE change, atypical dermoscopy or new pigmented lesion - full-thickness excisional biopsy, not a shave.
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Aggressive SCC
Rapidly growing, tender or deeply infiltrative SCC - requires excision and staging.
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Recurrent BCC
BCC returning at a previously treated site - Mohs micrographic surgery is usually preferred.
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Post-radiation SCC
SCC arising in previously irradiated skin - higher recurrence risk, needs specialist input.
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Lentigo maligna
Melanoma-in-situ on sun-damaged facial skin - requires mapping and full excision.
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Cutaneous horn
A horn-shaped keratotic projection can hide invasive SCC at the base - excise, don’t shave.
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Ulcerated lesion > 6 mm
Persistent ulceration in a growing lesion is a red flag - full-thickness sampling.
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Bleeding scalp lesion
A scalp lesion that bleeds spontaneously warrants prompt dermatology review.
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Post-transplant SCC
Solid-organ transplant recipients develop aggressive SCC - specialist surveillance essential.
Reading your report
A histology report can look intimidating. It isn’t.
Whatever the finding, the report keeps to the same four parts.
A quiet reminder
The report is written for your doctor, not for you - and that’s normal.
If anything in it is unclear, ask your dermatologist or GP to talk you through it at your follow-up.
- 01 Header
Site, size and clinical suspicion
Your details, anatomical site, lesion size and the pre-biopsy clinical differential diagnosis.
- 02 Technique
Shave technique and specimen
Method used (scalpel or dermablade), specimen dimensions and orientation for the pathologist.
- 03 Findings
Histology: architecture and cytology
The dermatopathologist’s description of epidermal and dermal architecture, cellular features and margins.
- 04 Impression
The diagnosis and next step
The final histological diagnosis and the concrete next step - reassurance, monitoring, further treatment or MDT.
Recognised by major UK insurers
Frequently asked
Common questions about shave biopsy.
Quick answers on when a shave is right, when it isn’t, what to expect and how long results take.
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What is a shave biopsy?
A shave biopsy takes a superficial disc of skin - epidermis and upper dermis - using a scalpel or flexible dermablade under local anaesthetic. It is used for lesions where full-thickness sampling isn’t needed.
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When is a shave biopsy the right test?
For suspected benign lesions (intradermal naevi, seborrhoeic keratoses, skin tags), and for non-melanoma skin cancers such as basal cell carcinoma and superficial squamous cell carcinoma, where the clinical and dermoscopic picture supports it.
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Why can’t a shave biopsy be used for melanoma?
A shave under-samples the base of a pigmented lesion, which can prevent accurate Breslow thickness measurement - the key prognostic marker in melanoma. Any lesion suspicious for melanoma is excised full-thickness.
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Does a shave biopsy leave a scar?
It heals as a shallow graze and typically leaves a small, flat, paler mark that fades over months. Cosmetic outcome is usually very good, especially away from the face.
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How long do results take?
The histopathology report usually returns within 5–10 working days. Your dermatologist will contact you with the result and the plan.
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Do I need stitches after a shave biopsy?
Sutures are not usually required. Bleeding is controlled with aluminium chloride or light electrocautery, and the site is dressed for 24–48 hours.
Sources
The guidelines behind this page.
- British Association of Dermatologists. Clinical guidelines and patient information.
- NICE. Melanoma: assessment and management (NG14).
- American Academy of Dermatology. Skin biopsy - patient guidance.
- European Dermatology Forum. Guidelines on skin cancer diagnosis and management.
Last reviewed 2026-07-30 · Next review 2027-07-30 · Reading time 4 min
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In practice, in London
What shave biopsy looks like on the ground in London
With shave biopsy, 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 shave biopsy vary widely by borough and by how the GP letter reads. Privately in London, a slot inside the same week is often possible, 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.
Once you’re in the private system for shave biopsy, the pace picks up noticeably. Consultant slots run to time, imaging is usually available in the same building or a short walk away, and the report comes back typed and detailed. It’s the coordination that tends to feel different, with fewer hand-offs between departments. For shave biopsy specifically, the difference between a routine report and a sub-speciality read is where private care earns its keep.
It is worth asking which consultant reads this particular presentation, how quickly the unit turns reports around, and what the onward pathway is if the findings point somewhere unexpected.