Single Mole Check in Knightsbridge: When One Mole Needs a Look

What is a single mole check?

A single mole check is a focused clinical assessment of one skin lesion that worries you. A clinician takes a history, compares the lesion with your other moles, examines it through a dermatoscope and documents it, then explains whether it needs reassurance, review, removal or urgent referral.

Most people book a single mole check for a simple reason: one mark on their skin has changed, or they have only just noticed it and it looks different from everything else. It may be a mole on the back that a partner has pointed out, a spot on the face that keeps catching on a razor, or a dark patch on the sole of the foot. The purpose of the appointment is to answer one question well: does this particular lesion need anything doing?

Moles, or melanocytic naevi, are clusters of the pigment-producing cells called melanocytes. The British Association of Dermatologists (BAD) notes that the number of moles tends to rise until the age of 30 to 40 and then gradually falls, which is why a new mole in adulthood is worth monitoring and a mole that is growing or changing should be checked. Many of the lesions people worry about turn out not to be moles at all, but seborrhoeic keratoses, cherry angiomas or dermatofibromas, all of which are harmless. Telling them apart confidently is exactly what a dermoscopy-led check is for.

If a single check reveals other lesions that deserve attention, the clinician should say so and suggest widening the examination. A focused appointment should never mean ignoring something obvious a few centimetres away. For a broader look at risk, frequency and mole mapping, see our guide to the full-body mole and blemish check.

Why does checking one changing mole matter?

Because melanoma is common and early diagnosis changes outcomes. Cancer Research UK reports around 19,400 new melanoma cases a year in the UK, and almost everyone diagnosed at stage 1 survives 5 years or more, compared with around 75% at stage 3. Catching a change early is the aim.

These figures are not meant to frighten anyone. The overwhelming majority of moles people bring to a check are harmless. They explain why doctors take change seriously and why it is sensible to have a new or evolving lesion examined rather than waiting to see what it does next. Cancer Research UK also reports that around 2,600 people die from melanoma each year in the UK, and that the risk rises with age: roughly a third of new cases are diagnosed in people aged 75 and over.

A crucial point is where melanomas come from. A meta-analysis of 38 studies published in the Journal of the American Academy of Dermatology found that 29.1% of melanomas arose from a pre-existing mole and 70.9% appeared de novo, as a new mark on previously normal skin. So a check is not only for old moles that have changed. A brand-new pigmented spot in adulthood deserves the same attention.

What are the ABCDE and ugly duckling warning signs?

ABCDE stands for Asymmetry, Border, Colour, Diameter and Evolving. The ugly duckling sign means a mole that looks different from all your others. Neither is a diagnosis, but any of these features, especially change over time, is a good reason to book a check.

The NHS describes normal moles as usually round with smooth edges, a single colour, about the size of the end of a pencil or smaller, and stable over time. Melanomas, by contrast, often have an uneven shape, two or more colours, are often more than 6mm wide, and change. The ABCDE checklist turns those observations into five things you can look for at home.

The ugly duckling sign

Most people’s moles share a family resemblance: similar size, colour and pattern. In 1998 the French dermatologists Grob and Bonerandi described the “ugly duckling” sign, the idea that a melanoma often stands out because it does not match the rest of a person’s moles. It is particularly useful for people with many moles, where every mole may be slightly irregular but one is clearly the odd one out. The BAD leaflet on pigmented moles makes the same point, advising a check for any mole that is “very different from the other moles on the skin”.

Other symptoms worth noting

• Itching, soreness or swelling in a mole that has not been injured.
• Bleeding, oozing or crusting without an obvious cause.
• A firm, raised lump that is growing, whether it is dark, pink or skin coloured. NICE specifically flags lesions that suggest nodular melanoma, which may not follow ABCDE rules.
• A new mark on the palms, soles or genitals, or a new dark streak under a nail that is not caused by injury.
• A sore or spot that has not healed after a few weeks.

When should you see a GP urgently about a mole?

See a GP promptly if a mole has changed size, shape or colour, is painful, itchy, inflamed, bleeding or crusty, or if a new mark has not gone after a few weeks. If a clinician suspects melanoma, NICE guidance is a suspected cancer pathway referral, aiming for diagnosis or reassurance within 28 days.

In England, GPs use NICE guideline NG12 to decide who needs an urgent referral. For pigmented lesions, NICE recommends a weighted 7-point checklist. A score of 3 or more, or dermoscopy that suggests melanoma, should trigger a suspected cancer pathway referral. NICE defines that pathway as receiving a diagnosis, or having cancer ruled out, within 28 days of an urgent GP referral. The NHS website still describes seeing a specialist within about 2 weeks if melanoma is suspected.

The urgent pathway works. Cancer Research UK reports that for melanomas diagnosed in England in 2019, 66% were found through an urgent suspected cancer referral and only 3% through an emergency presentation. If you have a Levirgo appointment and the clinician is concerned, they will explain why, write a clear referral letter and advise you on the fastest route, which may be your own NHS GP, a private dermatologist or both. If you are not registered with a GP, our private GP service can help coordinate onward care.

What is dermoscopy and how accurate is it?

Dermoscopy uses a lit, handheld magnifier (up to about 20 times) to see pigment and blood vessel patterns below the skin surface. A Cochrane review found in-person dermoscopy plus visual inspection detected melanoma with 92% sensitivity versus 76% for looking alone, at the same specificity.

To the naked eye, a mole is a brown dot. Through a dermatoscope, it becomes a map: pigment networks, dots and globules, streaks, blue-white structures, and blood vessel shapes. Benign moles tend to show organised, symmetrical patterns. Melanomas often show chaos: several colours, irregular streaks, or atypical vessels. Dermoscopy is also very good at identifying lookalikes such as seborrhoeic keratoses, which have characteristic features of their own.

NICE’s melanoma guideline (NG14) recommends that pigmented skin lesions referred to specialist services are assessed with dermoscopy by healthcare professionals trained in the technique. The BAD describes the procedure as painless.

Put simply, sensitivity is how many melanomas are correctly flagged, and specificity is how many harmless lesions are correctly left alone. Better specificity matters too: in a hypothetical group of 1,000 lesions, the Cochrane authors estimated dermoscopy would avoid about 176 unnecessary excisions. That means fewer scars from removing moles that were never a problem.

What about mole-checking apps?

A separate 2018 Cochrane review of smartphone apps that analyse mole photos found the evidence weak and concluded that the AI-based apps studied were associated with a high likelihood of missing melanomas, with sensitivities ranging from 7% to 73%. The technology has moved on since then, and some NHS services now use regulated AI skin lesion analysis within supervised clinical pathways, but a consumer app on your phone is not a diagnosis. If an app, or your own instinct, says a mole looks odd, have it examined.

What happens at a single mole check appointment?

A single mole check is a short, unhurried appointment. You discuss the history of the lesion and your risk factors, the clinician examines it by eye and with a dermatoscope, photographs it for comparison, and agrees a plan with you before you leave, including any referral or removal.

1. History

   How long the lesion has been there, what has changed and how quickly, any itching or bleeding, previous sunburn or sunbed use, medications that suppress the immune system, and any personal or family history of skin cancer.

2. Naked-eye examination

   The lesion is examined in good light for size, shape, border, colour and texture, then compared with your other moles in the same area to look for an ugly duckling.

3. Dermoscopy

   The dermatoscope is placed on or just above the skin. It is painless and takes a minute or two. The clinician looks for benign or concerning patterns and for features of common lookalikes.

4. Photography

   A clinical photograph and, where appropriate, a dermoscopic image are taken with your consent, so any future change can be measured rather than guessed.

5. Decision and explanation

   You are told what the lesion most likely is, how confident the assessment is, and what happens next. You leave with clear safety-net advice on what should prompt you to come back.

Wear clothing that makes the area easy to reach, and remove nail varnish if the concern is a nail. Do not shave, pick or apply self-tan or make-up over the lesion beforehand. If you have old photos showing what it used to look like, bring them. You are always entitled to ask for a chaperone for any examination.

What are the possible outcomes of a mole check?

There are four realistic outcomes: reassurance that the lesion is benign; photograph and review in about 3 months if it is atypical but not suspicious; removal and histology if there is diagnostic doubt; or an urgent referral if melanoma or another skin cancer is suspected.

1. Reassurance

The lesion shows clearly benign features, for example a typical mole, a seborrhoeic keratosis, a freckle, a cherry angioma or a dermatofibroma. You are advised to keep an eye on it and to return if it changes. This is the most common result.

2. Photograph and review

Some moles look slightly atypical but have no features that justify removal. NICE NG14 recommends that a clinically atypical melanocytic lesion that does not need excision at first presentation should have baseline photography, preferably dermoscopic, and a review about 3 months later to compare. A stable lesion is reassuring; one that has changed is removed. This is a recognised, safe strategy, not a way of putting you off.

3. Remove and test

If there is genuine doubt, the safest way to get an answer is to remove the lesion in full and send it to a pathologist. The NHS says excision biopsy results usually take about 2 weeks.

4. Urgent referral

If the lesion looks like a melanoma or a squamous cell carcinoma, it should not be removed as a cosmetic procedure. NHS specialist skin cancer teams can remove it with the correct margins, stage it and plan follow-up in one pathway. A good private clinic recognises that limit and refers.

If a mole needs removing, which method is best?

For any mole where the diagnosis matters, excision biopsy (cutting out the whole lesion and stitching) is the standard, because the full lesion is examined. Shave removal suits some raised, clearly benign moles. Freezing, burning or laser removal of a mole is not advised, because nothing is left to test.

The BAD lists three reasons for removing a mole: doubt about the diagnosis, a mole that is repeatedly traumatised (for example by a bra strap or razor), and cosmetic preference. It also notes that cosmetic removal is not available on the NHS. Whatever the reason, a removed mole should go to the laboratory. Occasionally a mole removed “for cosmetic reasons” turns out to need further treatment, and without histology that would never be known.

If you have a raised mole, skin tag or seborrhoeic keratosis that is clearly benign and you want it gone, our guide to skin tag and blemish removal compares cosmetic options in more depth.

What is recovery like after mole removal?

Most people return to work the same day. Non-dissolvable stitches usually come out after 7 to 14 days depending on the site, and the scar starts pink and fades gradually over many months. Scars on the back, chest and shoulders tend to widen more than those on the face.

• Keep the dressing clean and dry for the first 24 to 48 hours, then follow the written wound care you are given.
• Avoid heavy lifting, stretching the area, swimming, saunas and hot baths until the stitches are out.
• Expect mild tenderness and some bruising. Over-the-counter paracetamol is usually enough.
• Seek advice promptly if you notice spreading redness, heat, increasing pain, pus or a fever, which can be signs of infection.
• Once healed, silicone gel or sheets may help the scar settle. Protect it from the sun with clothing or SPF 30 or higher for several months.

People with a personal or family tendency to raised scars, particularly on the chest, shoulders and upper back, should mention it before any removal. In some cases a keloid scar can be more noticeable than the original mole. Our articles on keloid injection and scar treatment explain how raised scars are managed.

How much does a single mole check cost in London?

In London, a private single mole check with dermoscopy typically costs about £90 to £200. If removal is needed, an excision biopsy including histology is roughly £350 to £700. These are indicative market ranges; your exact fee is confirmed in writing after assessment.

When comparing quotes, check whether histology is included, who reads the slides, whether stitch removal and a results appointment are included, and whether the check fee is deducted if you go on to have the lesion removed. A very cheap removal that skips the laboratory is a false economy.

How do you choose a clinic for a mole check in London?

Choose a CQC-registered clinic where a GMC-registered doctor or appropriately trained clinician uses dermoscopy, sends every removed lesion for histology, and has a clear pathway for urgent referral. Avoid any provider offering to laser, freeze or burn off a mole without testing it.

In England, the Care Quality Commission (CQC) regulates surgical procedures and diagnostic and screening procedures carried out by healthcare professionals. You can search the CQC website to confirm a clinic’s registration and inspection reports, and the GMC register to confirm a doctor’s licence to practise.

• Who examines you? Ask about the clinician’s training in dermoscopy and skin lesion assessment.
• Is dermoscopy standard? A mole check without a dermatoscope is little more than a glance.
• What happens if they are worried? There should be a clear, fast route to a dermatologist or NHS referral.
• Is histology always included? The answer for any removed mole should be yes.
• Are photographs kept? Without images, a “review in 3 months” cannot compare like with like.
• Will your GP be informed? With your consent, a letter keeps your NHS record complete.

Why have a mole checked at Levirgo in Knightsbridge?

Levirgo Aesthetics Clinic at 6 Beauchamp Place, Knightsbridge, SW3 1NG, a short walk from Harrods and Knightsbridge Underground station, offers doctor-led single mole checks with dermoscopy, careful documentation, histology for anything removed, and prompt referral whenever skin cancer is a possibility.

Our approach is deliberately conservative. We would rather photograph and review a borderline mole, or refer you on the same day, than remove something cosmetically that needed a specialist. Every assessment ends with a plain-English explanation and clear safety-net advice. We do not upsell removal of harmless moles, and we will tell you honestly if a scar is likely to bother you more than the mole does.

The clinic is on Beauchamp Place, a few minutes’ walk from Knightsbridge station on the Piccadilly line, and easy to reach from Chelsea, Belgravia, South Kensington and Kensington. You can book online or contact the team if you would like to discuss a lesion before booking. Explore our other skin treatments for wider concerns.