Acanthosis Nigricans

Acanthosis Nigricans

Overview

Acanthosis nigricans is a skin condition characterized by dark, thick, velvety patches in body folds and creases. It is most commonly associated with insulin resistance and obesity, and can be an early sign of type 2 diabetes. Less commonly, it may be associated with certain medications or underlying malignancies.

Key Symptoms

• Dark, velvety, thickened patches of skin
• Gradual onset, often unnoticed initially
• Skin may feel soft and velvety to the touch
• Most prominent in skin folds and creases
• May be accompanied by skin tags in the same areas
• Rarely itchy or painful

Affected Areas

Back of neck, Axillae (armpits), Groin, Knuckles, Elbows

Care Instructions

1. See a healthcare provider to evaluate for underlying insulin resistance or diabetes.
2. Weight loss and increased physical activity can significantly improve the condition.
3. Treat underlying causes such as diabetes or hormonal imbalances.
4. Topical retinoids or keratolytics may improve skin appearance.
5. See a dermatologist if onset is rapid or widespread, as this may indicate an internal malignancy.
6. Cosmetic treatments are generally not effective without addressing the underlying cause.

Medical Disclaimer: This information is for educational purposes only and does not replace professional medical advice. Always consult a qualified dermatologist for diagnosis and treatment.

Prevalence: Common; affects up to 74% of obese adults and is increasingly prevalent with rising obesity rates