Why do my elbows get dark hyperpigmentation and feel rough to the touch?
1. Introduction Dark, rough hyperpigmentation on the elbows is primarily caused by mechanical friction leading to hyperkeratosis, where the skin thickens to protect itself, coupled with an overproduction of melanin. In some clinical presentations, this thickened, dark skin signals underlying insulin resistance or metabolic syndrome, a condition known as acanthosis nigricans. The skin covering the … Read more