In dermatology, hyperpigmentation is the darkening of an area of skin or nails caused by increased melanin. This can be caused by a number of ailments. If you know your specific cause for hyperpigmentation, CureCrowd will help you and others find more focused data results. 

Hyperpigmentation may be caused by sun damage, inflammation, or other skin injuries, including those related to acne vulgaris.[1] People with darker Asian, Mediterranean, or African skin tones are also more prone to hyperpigmentation, especially if they have excess sun exposure.

Many forms of hyperpigmentation are caused by an excess production of melanin. Hyperpigmentation can be diffuse or focal, affecting such areas as the face and the back of the hands. Melanin is produced by melanocytes at the lower layer of the epidermis. Melanin is a class of pigment responsible for producing color in the body in places such as the eyes, skin, and hair. 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 effected. Can also be caused by using skin lightening lotions. Another form of hyperpigmentation is Post inflammatory hyperpigmentation. These are dark and discolored spots that appear on your skin following acne that has healed.[2]

Hyperpigmentation is associated with a number of diseases or conditions, including but not limited to the following:

Hyperpigmentation can sometimes be induced by dermatological laser procedures.


Treatment of hyperpigmentation may include hydroquinone, kojic acid, alpha hydroxy acids, azelaic acid, ascorbic acid, tretinoin (Retinol), topical glucocorticoids, and licorice extract. To help prevent these dark spots, sunscreen may be applied.

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