How common is a changing mole in melanoma?

A mole may change in size, outline, colour, surface, or sensation. A new dark or unusual-looking spot can also deserve attention. In melanoma, a changing pigmented mark may develop because cells in the skin are behaving differently. This pattern describes how melanoma can present; it does not identify the cause of any one mole. Ordinary moles, irritation, injury, and other skin conditions can also alter a mark's appearance.

Arrange a skin assessment if you notice a mark that is new, evolving, or unlike your other moles. Take a clear photo in good light and note when you first noticed the change; this can help you describe its course. Avoid picking, cutting, or trying to remove the mole at home. A clinician can examine the whole skin area and decide whether close observation, a dermatoscope examination, or a sample is appropriate.

Seek prompt medical assessment for a mole that is growing noticeably, bleeding without a clear injury, becoming crusted, or developing several colours. Get help sooner if a new dark spot appears and keeps changing, especially when it looks different from your usual marks. If a lesion becomes painful or persistently itchy, mention those changes during the appointment. Urgency is based on the changing skin finding itself, not on trying to judge its cause at home.

Ask which features of the mole need follow-up, whether photographs would help track it, and whether a dermatoscope or skin sample is needed. You can also ask how to check hard-to-see areas such as the scalp, back, and soles of the feet.