Kawasaki disease, also known as cutaneous mucosal lymph node syndrome, occurs under 4 years of age, is a rash fever with conjunctival congestion, swollen cervical lymph nodes, hard redness and swelling of the ends of the limbs, pain, violent skin at the ends of the fingers, red congestion and dry cracking of the lips and mouth, inflammation of the oral mucosa, fever between 38-40 degrees, the disease becomes hard on the back of the hands and feet in 3-4 days of fever, similar to edema, shiny skin, redness of the hearts of the hands and feet and palms, while there is a general red Inflammatory micro-rash, like measles itching, itchy rash does not form water sores, increased eye secretion, dry and cracked mouth and lips filled Blood tests may have increased white blood cells, increased platelet count increased blood sedimentation. X-ray examination of some patients can be seen in the enlarged heart, abnormal electrocardiogram, echocardiography some patients have coronary artery disease, pericardial effusion, great enlargement. The etiology of this disease is unknown so far, may be related to infection and host-specific immune response, clinical manifestations and systemic vasculitis pathological changes, feeding closely related to the acute phase 1-2 weeks microvascular vasculitis small vessel inflammation and whole heart inflammation, subacute phase 3-4 weeks can cause coronary artery disease, recovery period after 5 weeks, some patients coronary arteries can be narrowed, calcification, or re-sparing and lead to ischemic heart disease, its death The causes are myocarditis, heart failure, coronary artery dissection, and ischemic cardiomyopathy. When the course of the disease enters the recovery period, the fever and rash will subside, but the prognosis of the disease is determined by the progression of cardiovascular, especially coronary artery involvement, coronary artery aneurysm is a serious risk combination disease, after treatment about half of the patients with coronary artery can subside on their own, 10-20% of patients with coronary artery disease can subside after 1-2 years, 3% of patients can cause coronary artery stenosis and cause ischemic cardiomyopathy, due to High platelet values should be treated with anticoagulation to normal platelet values.