Frictional Alopecia of the Distal Legs: Case Series and Review

The study described 5 patients with alopecia of the lower legs caused by friction from socks or footwear. It was found that acquired frictional alopecia of the lower extremities was often asymptomatic and discovered incidentally during physical examinations. Despite removing the source of friction, the condition could persist for many years. The study suggested that the incidence of this non-scarring subtype of alopecia might have been higher than previously reported.