Vellus Hairs in Alopecia Areata: Sensitivity, Activity, Severity
Vellus hairs are short, thin hairs are commonly seen in patients with alopecia areata. These hairs tend to be seen in patients with more severe and active disease.
This photo shows vellus hairs in a patient with advanced alopecia areata involving 85 % of the scalp.
This article was written by Dr. Jeff Donovan, a Canadian and US board certified dermatologist specializing exclusively in hair loss.