The signs and symptoms of lichen planus may vary depending on the areas affected. Lichen planus of the mouth may produce tender and painful spots or ulcers. These spots may gradually increase in size.
Lichen planus of the skin may appear as purple-reddish bumps or blisters, most often on the inner forearm, wrist or ankle, but sometimes on the external genitals. These bumps may be itchy and become painful over time due to scratching. Hair loss is also a common symptom of lichen planus.
Your dermatologist will perform a physical examination and a review of your medical history in order to diagnose lichen planus. Additional tests, such as a biopsy or allergy test, may also be performed.
NEXT: Treatment Options ›