Moles (melanocytic naevi) are very common. They are collections of cells called melanocytes within the skin. Moles are usually brown in colour, although some may be darker or skin-coloured. They can be flat or raised, smooth or rough, and some have hair growing from them. They are usually circular or oval in shape, with a smooth edge. Moles can be present from birth but more commonly develop in the first 20 years. Most moles are normal and harmless but a few develop into malignant melanoma. It is important to check your moles regularly and see your doctor if you notice a change.

Moles can be examined by dermoscopy which is a specialist investigation performed by dermatologists trained in this technique. It enables the dermatologist to view the pigment patterns and their depths within the skin and thereby establish if a mole has or is likely to turn cancerous.

Moles that are changing or suspicious in any way may be removed surgically by a dermatologist under local anaesthetic in order that the mole can then be examined under the microscope. Moles can also be removed by surgical or shave excision for cosmetic purposes.

 

Checking your skin every 2 to 3 months can help you to identify any moles that may be changing and need assessment by a dermatologist.

Here is a link to a guide for checking your skin:

Checking your skin | British Skin Foundation

Melanocytic naevi (pigmented moles)