You can read more about what causes hyperpigmentation and find out more about the different types of the condition in Hyperpigmentation: what causes dark spots and how can I reduce them??
Pigment spots are usually harmless although they can affect someone’s self-confidence. Certain forms, such as melanoma (a type of skin cancer), can be life-threatening. If you have any concerns about your pigment spots – if they change shape, size and color or if they become itchy and start to bleed – it’s important that you consult your doctor.