Necrotizing small vessel vasculitis is usually curable. Necrotizing small vessel vasculitis is relatively widespread, often affecting the patient’s lungs, skin, nephritis and digestive system. It is a kind of allergic reaction disease, which can be treated with medication in the early stage, generally using cyclophosphamide, leflunomide, methotrexate, glucocorticoids (such as prednisone, etc.), and tretinoin to effectively alleviate the symptoms. However, when the condition of some patients is more serious, surgical treatment is required. The commonly used surgical method is percutaneous transluminal angioplasty, which mainly seeks to dilate the blood vessel lumen to make it larger, thus restoring blood flow and curing the disease. With active treatment, necrotizing small vessel vasculitis symptoms can be gradually relieved until they disappear, reaching the standard of clinical cure. However, it is easy to recur, and clinical attention should be paid to it. Therefore, patients diagnosed with necrotizing small vessel vasculitis should go to the hospital in time, follow the doctor’s instructions for treatment and go to the hospital for regular checkups.