What are the symptoms of Acanthosis Nigricans?

Overactive growth in skin cells called fibroblasts and keratinocytes, can lead to the development of acanthosis nigricans. Symptoms of acanthosis nigricans can include:

• Dark, thick, velvety skin in armpits
• Dark, thick, velvety around groin
• Dark, thick, velvety on neck
• Dark, thick, velvety skin on lips, palms, and soles of feet
• Possible itching