Research progress in the cause of skin itching and its circadian rhythm
Pruritus is a common symptom of the skin,including the systemic itching resulted from systemic underlying diseases and the skin partial itching caused by primary skin disorders or external conditions.In this article,we briefly expound itching caused by systemic underlying diseases and primary skin disorders,and summarize the partial itching of skin caused by undesirable living conditions(such as air pollution,staying up late and unhealthy diet)and the resulted circadian rhythm disorders.We discuss how to relieve skin itching from the perspective of regulating circadian rhythm.