The back of the scalp is commonly affected by this condition; however, psoriasis of the scalp may affect the entire scalp. This scalp disease is distinguished by the presence of white scaly patches on red skin which can extend beyond the hair line. This condition may also cause severe itching and can last for years.
Psoriasis of the scalp is difficult to tell apart from a bad case of cradle cap. A severe occurrence of psoriasis of the scalp may lead to lesions on the individual's face.