Anti-neutrophil cytoplasmic antibodies are a valid indicator of vasculitis, and once a patient has anti-neutrophil cytoplasmic antibodies (+), there is a possibility of vascular-associated inflammation. Vasculitis is one of the rheumatic immune diseases, which is related to the degree of involvement, some patients may involve large vessels, others may be medium or small vessels, and patients may develop organ ischemia, thrombosis-related diseases. There is a risk of aneurysm, irregular fever, bone and joint pain, fever, including pulmonary hemoptysis. Severe patients need to apply hormone and immunosuppressant therapy, if the diagnosis is vasculitis, it will be combined with propecia shock treatment, which costs more, and the cause of this disease is inexact, clinical prevention is not effective, only after the diagnosis of the disease, take a comprehensive treatment plan, if the regular application of drugs, the overall prognosis is good, but prolonged, it is not yet possible to cure.