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 nitidus is an inflammatory condition that causes small, shiny bumps to develop on the skin. It rarely causes other symptoms and does not usually require treatment. The causes of lichen nitidus ...

What Is Oral Lichen Planus? Oral lichen planus is a long-lasting disease that affects your mouth, causing symptoms such as painful white patches, redness, and swelling. It doesn't go away, but you may ...

Lichen sclerosus is a skin condition that can increase your risk of cancer. It’s not a type of cancer on its own, but treating this condition can help you prevent vulvar cancer. Lichen sclerosus ...

Lichen sclerosus is a long-term inflammatory skin condition that creates patches of shiny white skin that’s thinner than typical. It most commonly affects the genital and anal regions, especially the ...

This Journal feature begins with a case vignette highlighting a common clinical problem. Evidence supporting various strategies is then presented, followed by a review of formal guidelines, when they ...