Because acanthosis nigricans usually only changes the skin's appearance, no treatment is needed.
It is important, however, to treat any underlying medical problem that may be causing these skin changes. When acanthosis nigricans is related to obesity, losing weight often improves the condition.
Acanthosis nigricans often fades if the cause can be found and treated.
Calling your health care provider
Call your health care provider if you develop areas of thick, dark, velvety skin.