A 28-year-old male asked:
i have dark brown spots underneath my armpit area, through out the sides of my ribs aswell. i am over weight, and im 28. what can it be?
1 doctor answer
Dr. Robert Pearson-Martinez answered
19 years experience Pediatric Cardiology
Insulin resistance?: Hard to say without seeing it, but i would suspect acanthosis nigricans, which is a darkening and thickening of the skin (which ends up looking "velvety") in the flexural creases, like the underarms, the neck, the popliteal fossa (inner elbow) and the groin. This is a sign of Insulin resistance, which is the mechanism by which overweight people eventually may develop diabetes.
Answered on Sep 28, 2016
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