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A to Z: Acanthosis Nigricans

May also be called: Acanthosis

What Is Acanthosis Nigricans?

Acanthosis nigricans (ay-can-THO-sis NYG-ruh-cans) is a condition in which thick, dark, and sometimes streaky patches appear on the skin.

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This condition is more common in people with high levels of insulin (a hormone) in their blood due to insulin resistance, which can lead to type 2 diabetes and other health problems.

Acanthosis nigricans can also be hereditary and may develop in kids and teens who are otherwise healthy.

What Else Should I Know?

Treatment for acanthosis nigricans isn’t usually necessary, but doctors may prescribe creams or lotions. If a child has acanthosis with a medical cause, it’s most important to treat that underlying cause.

Maintaining a healthy weight through physical activity and a balanced diet may also help improve the skin's appearance.

All A to Z dictionary entries are regularly reviewed by KidsHealth medical experts.

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