Lichen planopilaris is a rare inflammatory condition that results in patchy progressive permanent hair loss mainly on the scalp.
Lichen planopilaris usually affects young adult women, although the age range is wide and it also affects men. It commonly develops in association with lichen planus affecting the skin, mucosa and nails.
The cause of lichen planopilaris is unknown.
Although lichen planopilaris is rare, it is one of the common causes of scarring hair loss of the scalp.
Symptoms are often absent but they may include: