Medically reviewed by Katlein Franca, MD When psoriasis affects the scalp, it causes thick, silvery-white or gray scales that may be inflamed and itchy. You may also feel burning or other discomfort.

A little itch is nothing to be concerned about, but if you can't stop scratching your head, here are some causes of an itchy scalp.

Severe scaling of the scalp may result, and due to cuticle breakage, the hair may become brittle, with considerable broken hair visible on the patient (Habif, 2004). Lesions may become secondarily ...