Skin lesion excision

Overview

Skin lesion excision is a minor surgical procedure to remove an abnormal growth or area of skin. A doctor numbs the area and cuts out the lesion, then closes the wound with stitches. The removed tissue is often sent to a lab to check if it is harmless or needs further care.

Yes, skin lesion excision is a very common procedure. Many people have moles, cysts, or other growths removed for medical or cosmetic reasons.

It can affect anyone who has a skin lesion that needs removal. People with a history of sun damage, unusual moles, or skin conditions may be more likely to need this procedure.

Symptoms

Common symptoms

• A skin growth that changes in size, shape, or colour
• A sore that does not heal within a few weeks
• A lump or bump that bleeds, itches, or becomes painful
• A new spot that looks different from other moles or marks on your skin

Symptoms in children

• A mole that grows quickly or changes appearance
• A birthmark that becomes irritated or starts bleeding
• A lump under the skin that feels tender or enlarges

Symptoms in older adults

• A dry, scaly patch that does not go away with moisturiser
• A firm, raised growth that bleeds easily
• A new or changing spot, especially on sun-exposed areas like face, arms, or hands

Causes

Main causes

• Skin lesions can develop for many reasons: sun exposure, genetics, viruses, or unknown causes.
• Some lesions are harmless (like moles or cysts), while others may be pre-cancerous or cancerous.
• Excision is often done to remove a lesion that looks suspicious or causes symptoms.

Risk factors

• Having a lot of moles or unusual moles (dysplastic nevi)
• A family history of skin cancer
• Frequent or intense sun exposure, especially with sunburns
• A weak immune system, for example from certain medicines or conditions
• Previous skin cancer or pre-cancerous lesions

When to see a doctor

See a doctor urgently if:

• A skin lesion that bleeds without injury, or that changes quickly over weeks
• A sore that does not heal after 4–6 weeks

Book a routine appointment if:

• A mole or growth you have noticed for a while but are worried about
• A lump that is painful or gets larger slowly
• A skin lesion that bothers you for cosmetic reasons or catches on clothing

Diagnosis

A doctor will first examine your skin lesion closely, often using a handheld magnifying lens called a dermatoscope. They will ask about your personal and family history of skin problems and sun exposure. If the lesion looks suspicious or needs more information, they may recommend excision for removal and lab analysis.

Tests that may be done

• Visual exam – looking at the lesion and surrounding skin
• Dermatoscopy – using a special magnifying tool to see details
• Biopsy – removal of a small sample or the whole lesion to check under a microscope

What to expect at your appointment

Your doctor will explain the procedure, any risks, and aftercare. They will numb the area with a local anaesthetic injection, so you will be awake but will not feel pain. The excision takes about 15–30 minutes, depending on the size and location. Afterward, you will have stitches and a dressing to protect the wound.

Treatment

Skin lesion excision is the main treatment for removing abnormal growths. The goal is to take out the entire lesion, often with a small margin of healthy skin around it, to ensure it is completely removed. After removal, the tissue is sent to a lab for analysis if needed. Other treatments may include freezing or laser therapy for some types of lesions, but excision is the most common method for suspicious or large lesions.

Self-care at home

• Keep the wound clean and dry for the first 24–48 hours as advised by your doctor.
• Do not soak the wound in water (bath, swimming, hot tubs) until it is fully healed.
• Avoid heavy lifting or strenuous exercise that could pull on stitches.
• Watch for signs of infection like redness, swelling, or pus, and contact your doctor if they appear.

Medical treatments

If the lab results show the lesion is pre-cancerous or cancerous, your doctor will discuss next steps. This may include further surgery to remove extra skin (wider excision), or other treatments like topical creams, radiation, or referral to a specialist. The exact treatment depends on the type and stage of the lesion.

When is surgery considered?

Excision is recommended when a skin lesion needs to be removed for diagnosis or treatment. It is the standard approach for most suspicious moles, cysts, lipomas, and skin cancers. Your doctor will decide based on the lesion's appearance, size, location, and your overall health.

Living with this condition

After excision, you will have a small wound and stitches. Most people can return to work and normal activities within a few days, avoiding heavy lifting or activities that stretch the wound. Stitches are usually removed after 5–14 days, depending on the location. You will have a scar that fades over time.

Lifestyle tips

• Protect the scar from sun exposure – use sunscreen or cover it for at least a year to reduce darkening.
• Avoid picking at scabs or pulling on stitches as this can cause infection or scarring.
• Follow your doctor’s advice about when you can shower, bathe, or swim.

Diet and exercise

A healthy diet rich in vitamins and protein can help wound healing. You do not need special foods, but staying well-hydrated and eating balanced meals supports recovery. Gentle exercise like walking is fine once you feel up to it. Avoid heavy gym workouts or contact sports until the wound is fully healed.

Mental health and emotional wellbeing

It is normal to feel anxious about a skin lesion, especially if there is a possibility of cancer. The wait for lab results can be stressful. Talk to your doctor about the timeline and what to expect. Most excised lesions are harmless, and even if cancer is found, early treatment often leads to a good outcome. If you feel overwhelmed, speak to a counsellor or support group.

Prevention

You cannot prevent all skin lesions, but you can reduce your risk of developing harmful ones. Protect your skin from the sun by using sunscreen, wearing protective clothing, and avoiding tanning beds. Check your skin regularly for new or changing spots, and see a doctor if you notice anything unusual. Avoid smoking, as it can harm your skin and increase the risk of certain lesions.

Vaccines

There is no vaccine to prevent most skin lesions. However, vaccines for human papillomavirus (HPV) can reduce the risk of some viral skin growths like warts. Ask your doctor if this is appropriate for you.

Screening programmes

There is no routine national screening for skin lesions, but you can perform regular self-exams. Look at all areas of your skin, including your scalp, back, and between toes. If you are at higher risk (e.g., family history of skin cancer, many moles), your doctor may recommend periodic professional skin checks.

Complications

If left untreated

• A harmless lesion may grow, become irritated, or bleed, but usually does not cause serious problems.
• A pre-cancerous or cancerous lesion left untreated can grow deeper and spread, making treatment harder and less effective.
• Some lesions, like cysts, can become infected, causing pain and swelling.

Long-term outlook

The outlook for most skin lesion excisions is excellent. The procedure is safe, and healing is usually straightforward. If the lesion is found to be cancer, early removal often leads to a cure. Even for more serious findings, modern treatments offer good outcomes. Follow your doctor’s advice for aftercare and follow-up, and you can expect to recover well.

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