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Skin Hair and Nails
Hyperpigmentation
22
Jun
Jun
In dermatology, hyperpigmentation is the darkening of an area of skin or nails caused by increased melanin. Melanin is a class of pigment responsible for producing color in the body in places such as the eyes, skin, and hair.
• In dermatology, hyperpigmentation is the darkening of an area of skin or nails caused by increased melanin. Melanin is a class of pigment responsible for producing color in the body in places such as the eyes, skin, and hair.
• Hyperpigmentation may be caused by sun damage, inflammation, or other skin injuries, including those related to acne vulgaris.
• People with darker Asian, Mediterranean or African skin tones are also more prone to hyperpigmentation, especially if they have excess sun exposure.
• Hyperpigmentation can be diffuse or focal, affecting such areas as the face and the back of the hands. As the body ages, melanocyte distribution becomes less diffuse and its regulation less controlled by the body. UV light stimulates melanocyte activity, and where concentrations of the cells are denser than surrounding areas, hyperpigmentation is affected.