Lichen planus is a skin rash triggered by the immune system. It’s not currently known why this immune response occurs. There may be several contributing factors, and each case is different. Potential ...

Lichen nitidus is an eruption of tiny, flesh-colored bumps on your skin. It’s a harmless condition that usually goes away on its own within a year. It used to be considered a variant of lichen planus, ...

Lichen planus is an inflammatory skin condition that causes a rash that is usually itchy. It consists of small, shiny, slightly raised, flat-topped bumps that can be pink or purple in color. Lichen ...

Lichen sclerosus is an uncommon, long-term skin condition where small patches of skin become thin and colorless. The condition can affect any part of the body but most often occurs in the skin around ...

Psoriasis and lichen planus are skin conditions that share some features in common, like a red and scaly look, but they also have key differences. Psoriasis tends to thicken into patches and can last ...