Psoriasis (psoriasis) or scaly lichen is a non-infectious dermatosis. The true causes of the disease are not clear. Currently, a provoking factor is a violation of autoimmune processes.
It is accompanied by pain and severe itching, which causes not only physical suffering, but also psychological discomfort. The root cause of plantar psoriasis can be a common skin injury.
Psoriatic rashes can have strict localization and all the time appear in the same places on the body. The clinical course of this form of the disease is usually easier. Nevertheless, it is characterized by frequent and persistent exacerbations.
Psoriasis is a very common disease. It can affect almost any part of the skin and body. So, there is a defeat of the nails, fingers, face, scalp, as well as bones and joints. But most often it is diagnosed all the same psoriasis on the elbows.
In the classic form of psoriasis, rashes are usually bilateral and symmetrical, which is why it is important to conduct a complete skin examination - even if the patient has not paid attention to these lesions.
In most patients with vulgar psoriasis, characteristic eruptions appear not only on the skin of the elbows, knees, but also throughout the body, including the head. And the damage to the skin on the head is often defined as seborrheic psoriasis.