Thickened skin?: Thickened, dark skin under the arms is a sign of acanthosis nigricans. Acanthosis is a velvety thickening of the skin that occurs most commonly in Insulin resistance (pre-diabetes) or other hormone disorders. If this is what you are describing, please see your dermatologist for evaluation and management.
Answered 6/25/2014
4.9k views
A doctor has provided 1 answer
A doctor has provided 1 answer
A doctor has provided 1 answer
3 doctors weighed in across 2 answers
90,000 U.S. doctors in 147 specialties are here to answer your questions or offer you advice, prescriptions, and more.
Ask your question