A member asked:

Why is my groin area so dark. my legs are very thick, could be that. because something similar happens to my armpits i believe. can it go away?

A doctor has provided 1 answer

Acanthosis: Acanthosis nigricans is a localized skin disorder manifesting with hyperpigmented, velvety plaques located in flexural and intertriginous regions. The precise pathogenesis is unknown but is speculated to involve the stimulation of growth factor receptors on keratinocytes and fibroblasts. Acanthosis nigricans has various subtypes relating to cause and/or location: obesity-associated most commonly.

Answered 2/18/2016

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