L43: Lichen planus

L43.3: Subacute (active) lichen planus

You have lichen planus. With this condition, the body’s own immune system is often not working properly. The skin condition may be caused by contact with pathogens or by skin injuries, for example. Your skin has become inflamed as result.

Typically, small, flat bumps or papules with a reddish color appear on the skin. These areas can be itchy. You often see a lacy, white pattern on the bumps.

Your wrists, ankles and lower back are particularly affected.

The bumps often fade away again after one to two years. Once the bumps have healed, the affected areas of the skin look darker.