The cause of Kawasaki disease is not very clear at present and is considered to be a disease caused by multiple factors, including viral infections, bacterial infections, rickettsial infections, genetic factors, and other factors. These comprehensive factors ultimately lead to the occurrence of Kawasaki disease, also known as mucocutaneous lymph node syndrome, which is an acute, febrile, rash-associated pediatric disease primarily characterized by systemic vasculitis. Since this disease can lead to severe cardiovascular complications, the most serious complication is damage to the coronary arteries of the heart, resulting in coronary artery dilation, narrowing, aneurysms, and even myocardial infarction, etc. Therefore, parents must take it very seriously.