Mole removal: how it is done, what remains, and why it is checked in a lab

What is the difference between a beauty mark and a mole?

There is no difference: a beauty mark and a mole are two everyday names for the same lesion, a melanocytic nevus, a benign, localized growth of the pigment cells in the skin. The number of moles a person has depends on genetics, sun exposure and their immune system, and moles can appear and change in appearance over the course of life, mainly in childhood and adolescence¹. Part of this page deals with ordinary moles that have already been diagnosed as benign; if the question is how to recognize a mole that needs an urgent examination, there is a separate page for that, and a full explanation of the types of skin lesions can be found on the main page on skin lesions.

When is a mole removed: for medical or cosmetic reasons?

There are two main reasons to remove a mole: a clinical suspicion that needs investigation, or an aesthetic wish to remove a known benign lesion. In most cases moles are a normal, benign finding that does not need to be touched at all. Removal for a medical reason is considered when there are warning signs on examination, when the lesion changes, itches or bleeds, or when it is located where it is constantly injured, for example by rubbing against clothing⁷¹. Purely aesthetic removal is possible once the lesion has already been diagnosed as completely benign. In both cases the order of steps is the same: first establish what the lesion is, and only then choose how to remove it. Other benign lesions that are usually removed for aesthetic reasons, such as skin tags (acrochordons), are described on a separate page. What the health fund (kupat holim) covers when removal is medical, and what applies when it is aesthetic, is explained on the page mole removal through the health fund.

What is checked before removal?

Before removal is recommended, the lesion is examined clinically, usually with dermoscopy, to make sure it has no warning signs. Dermoscopy is an examination with an optical device that magnifies and illuminates the skin, making it possible to see structures inside the lesion that are not visible to the naked eye. The examination applies the ABCDE rule (asymmetry, border, color, diameter and evolution) and asks whether the lesion is new, whether it has changed, and how it looks compared with the person's other moles². Only after the clinical picture looks benign do you move on to the next step: choosing the removal method, which itself depends on whether a sample needs to be kept for further testing³⁸.

How is a mole removed by excision, and when is it the right choice?

Elliptical excision with stitches removes the entire lesion, including healthy margins around it, and is considered the "gold standard" for completeness of removal, but it is also the method that leaves the most noticeable linear scar. A meta-analysis that reviewed 46 studies and 4,201 lesions found that excision achieved complete removal in 96.4% of cases and an especially low recurrence rate of only about 2.1%. In the same meta-analysis, however, excision received the lowest cosmetic satisfaction score of the methods examined, about 6.2 out of 10⁹. Excision is particularly suitable for flat lesions, deep lesions, and any case in which it is especially important to ensure complete removal and a complete sample for pathology.

What is shave removal, and what is the risk that the mole comes back?

Shave removal takes off the lesion with a horizontal motion of a blade, without stitches, and usually gives a better cosmetic result, but with a higher risk that the lesion comes back. A review on the management of moles reported a recurrence rate of 13% to 26% after shave removal³. In a randomized trial comparing shave removal with elliptical excision, the recurrence rate after shave removal alone was 11.7%, and about 94% of recurrences appeared within three months; at the same time, shave removal had more involved margins on pathology, but a higher cosmetic result and satisfaction compared with excision¹⁰. Another study, on intraoperative monitoring, found a recurrence rate of about 33%, and in 5% of cases not enough tissue remained to make a definite diagnosis from the sample¹¹. The main drawback of shave removal is that the procedure is relatively "blind" compared with excision, because the physician does not see the full depth of the lesion during removal³.

Can a mole be removed with laser or plasma?

Not a pigmented lesion. Laser, plasma ablation and cautery vaporize or destroy the tissue in place, so no sample remains that can be sent for laboratory testing³⁶. The official guideline of the German Dermatological Society (S2k, 2022) states explicitly that "laser treatment of pigmented melanocytic nevi is not recommended"⁴. The position paper of the European Society for Laser Dermatology adds that in all cases "accurate identification of the disorder is mandatory" before choosing laser treatment for a skin lesion⁸. Cleveland Clinic also writes that laser, cautery and cryotherapy are "usually not recommended" for mole removal⁶. The practical reason: if the lesion was not the harmless mole it appeared to be, but an early stage of melanoma, the diagnosis may be lost permanently after laser treatment. Laser may be suitable for other, non-melanocytic lesions, such as skin tags, seborrheic keratosis or xanthelasma, but there too only after diagnosis. Laser hair removal in an area with moles can also change the appearance of the moles, so it is worth pointing them out before such treatment¹².

Can a mole on the face be removed without leaving a mark?

No. No removal method promises a result with no mark at all, and the face is especially sensitive because every small change is more noticeable. The American Academy of Dermatology writes that "any time you injure your skin, there is a risk of scarring"⁵, and Cleveland Clinic notes that after mole removal a scar remains that "may or may not be noticeable"⁶. The data support this: even with the methods that had the highest cosmetic scores in studies, Er:YAG and CO2 lasers, with scores of 8.8 and 8.4 out of 10, a result was still measured, not a complete absence of a mark⁹. The realistic goal is as small a mark as possible, and how noticeable it is depends on the method, the location of the lesion on the face, its depth and the skin type³⁹¹⁰. On removal from the nose, lip and eyebrow, see mole removal on the face, and on what is normal for the scar that remains, scar after mole removal.

What do you do after mole removal, and how long does healing take?

Keep the wound clean and moist, change the bandage every day, and once it has closed, protect it from the sun. Healing usually takes two to three weeks. According to Cleveland Clinic, after removal petroleum jelly is applied to the area and covered with a bandage, which is cleaned and changed daily. You can return to work or school the same day, and mild stinging in the first days is expected⁶.

Why moist and not dry: the American Academy of Dermatology explains that petroleum jelly prevents the wound from drying out and forming a scab, and that a wound with a scab heals more slowly. Wash gently with water and mild soap. After the wound has healed, apply broad-spectrum sunscreen (SPF 30 or higher), as this may reduce redness or darkening and help the scar fade faster¹³. If there were stitches, the time for removing them is set at the clinic according to the location of the incision.

See a doctor if the bleeding does not stop, if spreading redness or pus appears, or if the mole starts to grow back in the same place⁶. On treating a scar that remains noticeable: scars.

Why is the mole sent for pathology?

Because even a lesion that looks completely benign to the eye can turn out differently under the microscope, and this is the only way to know for certain. A review on the management of moles states that the accepted practice is to send every removed nevus for histological examination, and according to a study cited in it, 2.3% of nevi diagnosed clinically as benign turned out under the microscope to be malignant tumors: melanoma, basal cell carcinoma or squamous cell carcinoma³. Another study, which examined about 1,815 lesions excised on the assumption that they were benign, found that 0.33% of all lesions were actually malignant, and recommends routine pathology mainly for solid, pigmented or ulcerated lesions¹⁴. The American Academy of Dermatology also notes that a removed mole is examined under the microscope for cancer cells⁵. Methods that remove tissue, excision and shave removal, allow this examination; methods that destroy the tissue in place, such as laser, do not. How to read the report that comes back from the laboratory is explained on the page the pathology report after mole removal. When comparing price quotes, make sure this examination is included; see how much mole removal costs.

What happens if the mole comes back?

A mole that comes back after partial removal needs attention, because it can look like melanoma, both clinically and under the microscope. The phenomenon is sometimes called a "recurrent nevus" or, mistakenly, "pseudomelanoma," and it results from the removal method, usually shave removal or another partial method, not taking out all the pigment cells³. A study that examined the histological and immunohistochemical findings in recurrent lesions found that they can mimic melanoma under the microscope, which complicates diagnosis¹⁵. The practical meaning: a new lesion that appears exactly where a mole was removed in the past is a reason to report it to a doctor, not to assume it is a routine, meaningless phenomenon.

Why not remove a mole at home?

Because home mole-removal products can cause permanent damage, and even when they "succeed" in removing the lesion, they skip the diagnosis step, exactly the part that protects you. The US FDA has documented serious skin injuries, including burns, ulcers and permanent scars, caused by unapproved products for removing moles and skin tags; a considerable share of the cases were on the face, close to the eyes¹⁶. Beyond the direct risk to the skin, self-removal gives up the examination that confirms in advance that the lesion is benign, and the option of sending a sample to pathology when needed. What these products contain, and what to do if you have already tried them, is on the page removing moles at home: the risks.

How is it done at Dr. Dana's clinic?

Dr. Dana Buchbut examines every mole herself before she recommends a removal method. Only after the clinical picture looks benign do you move on to the procedure, so that you know exactly what to expect even before booking an appointment. A mole that is removed is sent for pathology testing, so removal is done with methods that leave a sample for testing. For a mole that looks suspicious, or that has changed, the recommendation is to be examined first by a dermatologist, as detailed on the page on suspicious moles. An overview of the types of lesions and removal methods can be found on the page on skin lesions.

Terms on this page: Dermoscopy · Pathology testing · Skin tag · Liquid nitrogen freezing · Seborrheic keratosis · Full glossary

The information on this page is general and for education only. It does not replace an examination, diagnosis or personal medical advice. A decision about treatment is made only after an examination.