Purplish, flat-topped lesions or bumps, mostly on the inner forearm, wrist, or ankle
Scalp discoloration
Thin white lines over the rash
Vaginal ulcers
White patches in the mouth, inside the cheeks, or on the gums, lips, or tongue
Causes-
The exact reason is not clearly understood. It is an autoimmune disorder that means it occurs when the immune system mistakenly attacks cells of the skin or mucous membranes. Some trigger factors include
Exposure to certain pigments, chemicals, and metals