mole changes treatment options overview

Overview

A mole is a small, usually brown or black spot on the skin made of pigment-producing cells. Most moles are harmless. Sometimes a mole changes, which can be a sign of skin cancer. Treatment for mole changes depends on whether the mole is harmless or needs further testing.

Yes. Almost everyone has moles. It is common for moles to appear in childhood and young adulthood.

Anyone can develop moles, but people with fair skin, light eyes, many freckles or moles, a history of sunburn, or a family history of skin cancer are more likely to have concerns.

Symptoms

Common symptoms

• A mole that gets larger, darker, or changes shape
• A new mole that appears after age 30
• Itching, crusting, or bleeding in a mole
• A mole that is asymmetrical, has uneven borders, or has multiple colors
• A mole larger than 6 mm (about the size of a pencil eraser)

Symptoms in children

• Moles in children can change as they grow; this is usually normal.
• Watch for a mole that looks very different from the child's other moles.
• A mole that bleeds or itches without reason should be checked.

Symptoms in older adults

• New moles or changing moles may be easier to see after age 50.
• Older adults should check their skin regularly for changes.
• Changes may appear on sun-damaged skin, so a full skin exam is helpful.

Causes

Main causes

• Moles form when pigment cells grow in a group instead of spread out.
• Sun exposure can trigger new moles or changes in existing ones.
• Genes — your family heredity — affect how many moles you have and how they look.
• Hormonal changes, such as in pregnancy, can make moles slightly darker.

Risk factors

• Fair skin, red or blonde hair, and light-coloured eyes
• Large numbers of moles (more than 50) or unusual looking moles
• A personal or family history of melanoma or skin cancer
• Frequent sunburns, especially during childhood
• Use of tanning beds

When to see a doctor

See a doctor urgently if:

• A mole that has changed in shape, colour, size, or elevation
• A mole that bleeds, itches, or crusts without injury
• A new mole that appears after age 30
• A mole that looks different from your other moles ('ugly duckling')

Book a routine appointment if:

• Any mole that worries you, even if it looks unchanged, can be checked at your next appointment.
• If you have a high risk of skin cancer, ask about regular skin exams.

Diagnosis

Your doctor will look at your whole skin, especially the mole of concern. They may use a magnifying instrument called a dermatoscope to see its features more clearly. If the mole looks suspicious, the doctor may recommend removing a small sample (biopsy) for testing.

Tests that may be done

• Physical exam of your skin
• Dermatoscopy (a handheld magnifier with a light)
• Biopsy (taking a small sample of the mole)
• Pathology review of the sample under a microscope

What to expect at your appointment

A skin exam takes only a few minutes. If a biopsy is needed, you'll get a local anaesthetic to numb the area. The mole or part of it is removed and sent to a lab. Results usually come back in about 1–2 weeks.

Treatment

Treatment for a mole depends on what it looks like under the microscope. If it is benign, no treatment is needed. If it is atypical, a doctor may remove it completely. If it is a melanoma, surgery is the main treatment. More advanced cancer may need extra therapies.

Self-care at home

• Check your skin monthly and take photos of any concerning moles to track changes.
• Protect your skin from the sun with clothing, hats, and shade.
• Use a broad-spectrum sunscreen on exposed skin, especially when outside.
• Do not try to cut, burn, or pick off a mole at home.

Medical treatments

Medical treatments for skin cancer or atypical moles are usually performed by a specialist. The main treatment is surgery to remove the mole and a small margin of healthy skin around it. For more advanced cases, doctors may use treatments that boost the body's immune system to fight cancer cells, therapies that target specific genetic changes, or radiation therapy. The specific plan depends on the type, location, and stage of the lesion.

When is surgery considered?

Surgery is the most common treatment for mole changes that turn out to be cancerous. The doctor removes the mole and a small border of normal skin to help ensure all abnormal cells are gone.

Living with this condition

After treatment, keep the area clean and protected from the sun. Continue reviewing your skin each month for new or changing spots.

Lifestyle tips

• Wear wide-brimmed hats, long sleeves, and sunglasses outdoors.
• Seek shade during midday when the sun is strongest.
• It is important to regularly apply sunscreen with a high SPF to unprotected skin.
• Do not use indoor tanning beds.

Diet and exercise

Aim for a balanced diet with plenty of fruit and vegetables, and try to stay active. This supports overall health and helps your body recover after treatment, though it does not replace medical care.

Mental health and emotional wellbeing

Finding a suspicious mole can be worrying. It is normal to feel anxious about the possibility of skin cancer. Talking openly with your care team and trusted people can help you manage these feelings.

Prevention

You cannot prevent all moles, and many are normal. You can lower your risk of skin cancer by limiting sun exposure, not using sunbeds, and checking your skin regularly. Regular checks help catch problems early.

Screening programmes

There is no standard national screening test for melanoma in everyone. People at high risk may be offered regular full-body skin exams by a specialist.

Complications

If left untreated

• A melanoma can grow deeper into the skin over time.
• Cancer cells can spread through lymph vessels to other parts of the body.
• Late-stage melanoma is harder to treat and may become life-threatening.

Long-term outlook

If a changing mole is caught early as melanoma, treatment is usually successful and the chance of recovery is high. The outlook depends on how early it is found and how deep it has grown. With prompt care, most people with early-stage melanoma do very well.

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