What is mole and skin-lesion assessment and removal?
It is the process of examining a mole, a wart or a patch —clinically and with dermoscopy— before removing it, to separate two questions that usually get mixed together: first, could this be a skin cancer?; and only then, how should it be removed? The order is not a formality: it is the difference between a safe procedure and an irreversible mistake.
The reason is concrete. When a lesion is destroyed —vaporised with laser, cauterised or frozen— there is no longer any tissue for a pathologist to analyse. If that lesion was an early melanoma, the one piece of evidence that could have caught it in time has just been erased, and with it the window in which that cancer was still curable. That is why the rule here is firm: a suspicious mole is not vaporised; it is excised and studied.
The great majority of moles are entirely benign, and many can be removed for cosmetic reasons or discomfort —the one that catches on clothing, the one nicked while shaving, the one that changed. But "most" is not "all", and the assessment exists precisely to identify the one that is not.
Techniques used by Dr. Arístides Arellano
There is no single correct technique: the correct one depends on what the lesion is, and that is decided before touching it. These are the tools and the judgement with which they are used:
- Clinical assessment and dermoscopy. A magnifying lens with polarised light reveals pigment patterns and structures invisible to the naked eye. It is the first filter and the one that decides everything else: it sorts the lesion into "reassuring", "watch it", or "study it".
- Surgical excision with histopathology. This is the mandatory route for any suspicious lesion, and for any mole removed at the root. The lesion is excised whole, with a margin, and sent to the laboratory for a pathologist to analyse. Nothing is assumed benign without confirming it under the microscope.
- Laser or electrofulguration removal, only for confirmed-benign lesions. Warts, keratoses, fibromas and superficial vascular lesions whose nature is not in doubt may be removed by methods that do not preserve tissue, when the aim is cosmetic rather than diagnostic.
- Referral for dermatologic and histopathologic evaluation. Any finding that exceeds direct management is oriented and referred to the appropriate study, backed by the clinic’s own skin-cancer screening and laboratory.
How is it done?
Everything begins with the assessment, not the removal. In the consultation the lesion is examined with the naked eye and with dermoscopy, applying a warning rule known as ABCDE: Asymmetry, irregular Borders, uneven Colour, growing Diameter, and above all Evolution —any mole that changes size, shape or colour, that itches, bleeds or will not heal— which is the sign that matters most.
From there the path forks. If the lesion is clearly benign and merely bothersome, it is removed in the office under local anaesthesia in a brief procedure. If there is any doubt, an excision is performed: it is removed whole with a margin and sent for histopathology. The pathologist’s result is what defines whether anything further was needed.
Cosmetic removal is a minor procedure: local anaesthesia, a few minutes, and depending on technique and location, one stitch or none. What kind of mark each method leaves is explained beforehand, because in darker skin —the most common in Mexico— some approaches can leave a patch or a scar more visible than the lesion itself, and that conversation happens before, not after.
Every medical treatment —topicals, peels and energy-based devices included— carries risk and requires a prior assessment. In darker skin (Fitzpatrick IV–VI, the most common phototypes in Mexico) a poorly indicated procedure can darken the patch instead of lightening it. Results may vary according to each patient, their phototype and their individual triggers.
Who is a good candidate?
A good candidate is anyone with a mole or lesion that worries them, that changed, or that physically bothers them. The assessment is valuable even when the conclusion is "nothing needs doing": knowing that with proper judgement is worth as much as removing what did require it.
- A mole that changed in size, shape or colour, that began to itch, to bleed, or that will not heal — the most important indication, and one that should not be postponed.
- Moles or lesions that are bothersome physically: catching on clothing, nicked while shaving, or sitting in a friction zone.
- Cosmetic reasons, for lesions whose benign nature has been confirmed or is evident at assessment.
- Risk history: very fair skin, many moles, significant childhood sunburns, or a family history of melanoma — these call for periodic review, not a hurried removal.
- Who is NOT a candidate for direct removal: any lesion with warning signs, which is studied before deciding how —and whether— to remove it. Anticoagulation, pregnancy or active infection in the area also change the plan.
Recommended aftercare treatments
Care after removing a lesion is simple but decides the scar: keep the area clean and protected as instructed, avoid direct sun on the wound, and do not pick the scab. On darker skin, strict sun protection over the following weeks is what prevents a dark patch at the site. See the full guide: Post-surgical recovery and care.
Before and after
Most patients want to see before-and-after photographs before deciding. Out of respect for each person’s privacy, Dr. Arístides Arellano shows real cases —always with documented consent— during your in-person consultation, where you can review results from patients with a starting point similar to yours. Results may vary from patient to patient.
Approximate price
Reference prices: lunares from $5,000 MXN and verrugas con Plasmage from $3,500 MXN, approximate, depending on the number, size and location of the lesions, and whether the specimen goes to pathology. Approximate price — the definitive cost is set at your private consultation with Dr. Arístides Arellano.
About Dr. Arístides Arellano
Dr. Arístides Arellano is a plastic surgeon holding a specialty licence: he practises under a Mexican medical licence (D.G.P. 1125959) and a specialty licence in Plastic & Reconstructive Surgery (0002008), both issued by the Directorate General of Professions (DGP), which reissued his certificate of professional standing in 2025. His career began before Mexico’s present-day specialty-board system existed: he belongs to the founding generation of plastic surgery in Puebla, the second generation of a surgical tradition started in 1971 by Dr. Francisco Arellano Ocampo. Trust is verified, not promised: both licences are public and anyone can look them up in the DGP’s National Registry of Professionals.
Related patient guide
Related guide: How to choose a plastic surgeon in Puebla.
Trust is verified, not promised. All 210 scanned documents —degree, licences, diplomas, publications and certificates, from 1977 to 2025— are open in Dr. Arístides Arellano’s credential archive, alongside an explanation of the difference between a specialty licence and a board certification.
Recovery · step by step
- Same dayAfter a minor removal under local anaesthesia, you leave walking and resume normal life. The area is dressed and written aftercare is given. If there were stitches, you are told when to have them removed.
- Days 1–7Keep the wound clean and protected. A small scab may form; do not pick it. Strict sun protection over the area, especially in darker skin, to prevent a dark patch from forming.
- Weeks 1–2If histopathology was done, this is the window in which the pathologist’s result comes back. That result is interpreted in consultation and defines whether the case is closed or needs a further step.
- Weeks 2–6The scar matures and lightens. The early mark is not the final one: a fresh scar always shows more than the one that will remain months later.
- Follow-upFor at-risk skin or many moles, periodic review is scheduled. Watching is part of the treatment: most melanomas are found through a change, not a new mole.
Frequently asked questions
Can a mole be removed with laser?
Only if it has first been confirmed benign. A suspicious mole is never destroyed with laser, because the laser vaporises it and no tissue remains for a pathologist to analyse. If that lesion were an early melanoma, the one piece of evidence that could catch it in time would be erased. That is why anything suspicious is excised and studied; laser is reserved for confirmed-benign lesions.
How do I know if a mole is dangerous?
The practical guide is the ABCDE rule: Asymmetry, irregular Borders, uneven Colour, growing Diameter, and Evolution —any change in size, shape or colour, or a mole that itches, bleeds or will not heal. The sign that matters most is change. With any of them, an assessment with dermoscopy is warranted; not a hurried removal.
Does removing a mole leave a scar?
Every removal leaves some mark; the aim is to make it as unobtrusive as possible. The size and type of scar depend on technique, location and your individual healing. In darker skin, the mark each method leaves is explained beforehand, because some approaches can leave a patch more visible than the lesion itself. Results may vary from patient to patient.
Does removing a mole hurt?
Removal is done under local anaesthesia, so no pain is felt during the procedure, only the initial pinch of the anaesthetic. It is a minor procedure of a few minutes. Afterwards there may be mild soreness in the area, managed with simple aftercare.
How long does the study result take?
When excision with histopathology is done, the pathologist’s result usually takes one to two weeks, depending on the study. It is interpreted in consultation, not over the phone, and it defines whether the case is closed or needs a further step. You are told at the outset how long yours will take.
How much does mole removal cost?
It depends on the number of lesions, their type, and whether histopathology is needed, so it is defined at the assessment and not before. A removal is never quoted without first deciding whether that lesion should be studied. Book your assessment to learn the cost in your case. Results may vary.
Every case is different. Discuss yours in a personal consultation.
Book a consultation on WhatsAppEvery figure published on this site is approximate and is not a quote. Any procedure or treatment first requires a private assessment consultation with Dr. Arístides Arellano —$800 MXN, charged separately— and it is at that consultation that the definitive cost of your case is determined.
Educational content; it does not replace a medical consultation. Results may vary from person to person.