Psoriasis is a chronic skin condition characterized by inflamed, red, raised areas that often develop as silvery scales on the scalp, elbows, knees, and lower back. The cause of psoriasis is unknown, however, it is thought to be caused by abnormally fast-growing and shedding skin cells. The skin cells multiply so quickly, causing the skin to shed every 3 to 4 days. Though not contagious, the condition is hereditary.
Psoriasis is often recurrent and occurs in varying severities.
The following are the most common symptoms of psoriasis. However, each individual may experience symptoms differently, as psoriasis comes in several forms and severities. Symptoms may include patches of red, raised skin on the trunk, arms, legs, knees, elbows, genitals, and scalp. Nails may also thicken, become pitted, and separate from the nail beds. This type of psoriasis affects mostly children.