The early symptoms of rheumatism in babies or children may be fever or a rash, such as a generalized pink rash or papule, or a herpes. It may also be accompanied by generalized joint and muscle pain and discomfort, as well as loss of appetite, headache, nausea, and vomiting. Rheumatic diseases in children usually have unique characteristics compared to adult rheumatic diseases, first of all, the incidence is relatively low, but the course of the disease is longer. Common clinical rheumatic diseases in children include rheumatic fever, juvenile rheumatoid arthritis, systemic lupus erythematosus, skin-mucosa-lymph node syndrome or Kawasaki disease, as well as allergic violet epilepsy and childhood dermatomyositis. All of these diseases often lead to systemic multi-system and multi-organ damage, and with the progression of the disease there are typical clinical symptoms that require early diagnosis and early effective treatment.