Scalp psoriasis is the same as the psoriasis that would affect any other part of the body. Red lesions are caused by skin cells dividing to rapidly. These lesions are often dry, itchy, and scaly.  The classification of scalp psoriasis ranges from being very mild to being very severe. In extreme cases, excessive flaking from severe scales will cause hair loss.

Guttate Psoriasis is a rare type of psoriasis characterized by pink color, small drop-like markings. The appearance of scales in the drop-like markings is much like the common type of psoriasis, though the scales are much finer. For all the psoriasis type diseases, it only accounts for fewer than 2% of infections. This disease is usually triggered by a bacterial infection. When a person is affected by a bacterial disease, such as strep-throat, he will be very susceptible it. Male and female patients under the age of thirty are all likely candidates.