Psoriasis is a common chronic relapsing disease associated with profound impaired quality of life.Until now, the fundamental pathophysiology of the disease still has not been fully elucidated.

• 摘要银屑病是一种长期困扰人类的疾病，具有病程长、易复发、难治愈的特点，其病因及发病机制至今尚未完全清楚。