Kawasaki disease is a common pediatric febrile rash disease, also known as mucocutaneous lymph node syndrome. It is a systemic vasculitis syndrome mediated by immune mechanisms. Kawasaki disease may be caused by acute immune dysregulation due to infectious factors, and genetic factors may be related to the acute onset of the disease. Therefore, Kawasaki disease is not contagious, and contact with children with Kawasaki disease will not lead to transmission. Kawasaki disease generally occurs in infants and young children, and there is no clear seasonal pattern to its occurrence, nor significant gender differences.