The Hair Loss Encyclopedia
skin condition with dark, thick, velvety patches
Acanthosis Nigricans (AN) is a skin condition characterized by dark, thick, and velvety patches, typically found in body folds and creases such as the neck, armpits, and groin. It is often associated with insulin resistance, obesity, and hormonal disorders, and can sometimes be a sign of an underlying health issue like type 2 diabetes or, in rare cases, cancer.