Psoriasis does not usually affect life expectancy, but it may affect the patient’s quality of life and cause some physical and psychological damage to the patient. Psoriasis is a chronic inflammatory skin disease, which is mainly related to genetic factors, autoimmune factors, psycho-neurological factors and infectious factors. The main manifestation of the patient is the appearance of various forms of red dots or red spots on the surface of the skin, and attached to a large number of flakes, mainly silvery white, can be accompanied by strong itching, seriously affecting normal life. However, this disease generally does not affect life expectancy and can survive for a long time, even without treatment, and is usually not directly fatal. Although psoriasis cannot be cured, but with the development of science, the current stage of the proliferation of biological agents, the level of treatment of psoriasis has been substantially increased, and patients are advised to go to regular hospitals for treatment in a timely manner to relieve the discomfort brought about by psoriasis.