mole changes travel health tips

Overview

A mole change means that an existing mole has become different in size, shape, colour, or texture, or that a new mole has appeared. Moles are small, usually brown or black spots on the skin made of pigment-producing cells. Paying attention to mole changes is important because they can sometimes be an early sign of skin cancer.

Yes, having moles is very common, and many people notice a mole change at some point. Most changes are harmless, but they should be checked to be safe.

Anyone can have a mole change, but people with fair skin, many moles, a history of sunburns, or a family history of skin cancer are more likely to develop concerning skin changes.

Symptoms

Common symptoms

• A mole that has become asymmetrical, meaning one half does not match the other.
• A mole with uneven, irregular, or blurred edges.
• A mole whose colour has changed, such as becoming darker, redder, or having multiple colours.
• A mole larger than 6 millimetres (about the size of a pencil eraser).
• A mole that is evolving, changing in size, shape, or symptoms such as itching, bleeding, or crusting.
• A new mole that appears after age 30.

Symptoms in children

• Moles in children often grow and change as the child grows, which is usually normal.
• New moles can appear in childhood and are generally harmless.
• A child's mole that looks very different from other moles, or that bleeds or itches, should be checked.

Symptoms in older adults

• New moles appearing after age 50 should be examined, because the risk of skin cancer increases with age.
• Older adults may have uneven and changing moles that need attention.
• Skin that has had many years of sun exposure can show changes in existing moles.

Causes

Main causes

• Moles form when skin pigment cells grow in clusters instead of spreading evenly.
• Sun exposure, especially sunburns, can trigger changes in existing moles and the growth of new ones.
• Hormone changes, such as during pregnancy or puberty, can make moles darker or larger.
• Some mole changes happen without a clear reason and are harmless.

Risk factors

• Fair skin that burns easily.
• Red or light-coloured hair.
• A large number of moles (more than 50) or some unusual moles.
• A family history of skin cancer, especially melanoma.
• Frequent intense sun exposure or use of tanning beds.
• A weakened immune system.

When to see a doctor

See a doctor urgently if:

• The ABCDE signs: Asymmetry, Border irregularity, Colour variation, Diameter greater than 6 mm, and Evolving.
• A mole that is bleeding, weeping, or crusting.
• A mole that feels itchy, tender, or painful.
• A new mole that appears after age 30.
• A mole that stands out from your other moles in appearance.

Book a routine appointment if:

• At your next check-up, ask your doctor to look at any mole you are unsure about.
• Before and after travelling, do a quick skin self-check and take photos of your moles.
• If you have a high risk of skin cancer, ask about regular skin checks by a professional.

Diagnosis

A doctor or nurse will ask about your medical history and examine your mole. They may use a handheld magnifying tool called a dermatoscope to see the structures of the mole more clearly.

Tests that may be done

• Dermoscopy: a special lens used to look at the pattern of the mole.
• Skin biopsy: the mole is removed or a small sample is taken, then it is examined in a laboratory.
• Sometimes a full skin examination is done to check for other concerning marks.

What to expect at your appointment

If the doctor thinks further tests are needed, they will refer you to a skin specialist (dermatologist). A biopsy is usually quick and involves numbing the skin first. Results can take a few days to a couple of weeks. You may need a follow-up visit to discuss the results.

Treatment

Treatment depends on what the mole looks like under the microscope. Many moles require no treatment other than checking them regularly. If a mole is abnormal or cancerous, it can be removed safely.

Self-care at home

• Do daily skin self-examinations and use photos to track changes.
• Protect your skin from the sun with sunscreen, shade, and clothing.
• Do not pick at or scratch a mole, as this can cause irritation and bleeding.
• Keep a note of any change and inform your healthcare provider.

Medical treatments

If a mole is precancerous or cancerous, a doctor may remove it. Options include a simple excision (cutting the mole out), cryotherapy (freezing the mole), or a procedure that removes the mole and a small margin of healthy skin. The exact treatment is based on the size, depth, and type of mole. Your doctor will explain the best approach for you.

When is surgery considered?

Surgery is common if the mole is melanoma, a serious type of skin cancer. The surgeon removes the mole and a rim of surrounding tissue to make sure the cancer is completely gone. Most procedures are done under local anaesthetic, meaning you are awake but the area is numb.

Living with this condition

Live with a mole by becoming familiar with your skin. Use a mirror or have someone help you check your back and scalp. Take photos of your moles and store them so you can compare over time. When travelling, pack a sun umbrella or wide-brimmed hat.

Lifestyle tips

• Wear a broad-spectrum sunscreen with a high SPF every day, even when cloudy or in winter.
• Avoid tanning beds and excessive sun exposure, especially around midday.
• Wear sun-protective clothing and sunglasses when outdoors for long periods.
• Stay hydrated and keep your skin moisturised.

Diet and exercise

A balanced diet and regular exercise support your overall health and your immune system, which is important for keeping skin healthy. No special diet is known to prevent or cure mole problems. If you are concerned about a mole, no amount of food or exercise can replace a medical check.

Mental health and emotional wellbeing

Sometimes worrying about a mole or skin cancer can cause anxiety and stress. It is normal to feel concerned. If you are having a hard time, talk to someone you trust or a mental health professional. Remember that most mole changes are benign and that you have taken a good step by getting informed.

Prevention

You cannot prevent all moles, but you can reduce the risk of harmful changes by protecting your skin from harmful ultraviolet (UV) rays. Use sunscreen, stay in the shade, wear protective clothing, and avoid sunburn.

Vaccines

There is currently no vaccine to prevent mole changes or skin cancer. Prevention relies on sun protection and early detection.

Screening programmes

Regular skin screening may be recommended if you have a high risk of skin cancer, such as a strong family history or many moles. Ask your healthcare provider about a skin check schedule that suits you.

Complications

If left untreated

• Some mole changes can be early signs of melanoma, which can spread to other parts of the body if not treated.
• Untreated skin cancer can cause damage to surrounding tissue and, in advanced stages, be harder to treat.
• Delaying a check can allow a suspicious mole to become larger and more invasive.

Long-term outlook

Most mole changes are completely benign, meaning they are not cancer. Even when a mole is melanoma, it is often successfully cured if caught early and treated appropriately. The outlook for skin cancer is generally very good when treatment happens early. Take one step at a time and trust your healthcare provider's guidance.

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