The length of time a patient can live with vasculitis is assessed objectively based on the severity of the patient’s condition and the timeliness of treatment. Vasculitis can be caused by a variety of factors, including immune system dysfunction and bacterial and viral infections. If the patient’s vasculitis is mild and the symptoms of vasculitis are controlled with active drug treatment, the impact on the patient’s life expectancy is usually not particularly significant, with most patients surviving for 20-30 years. If the patient has more severe and extensive vasculitis and is not given adequate medication to support treatment, this condition can lead to progressive exacerbation of the patient’s condition and some patients are likely to survive for about 1-2 years. Patients with vasculitis should be reviewed regularly, medication should be used reasonably under the guidance of a physician, and attention should be paid to calcium supplementation in general, either by sun exposure or appropriate exercise, to avoid osteoporosis.