Thromboembolic vasculitis is generally categorized into local ischemia, trophic disorder and necrosis, etc., and the performance of the patients in different periods will also be different. 1. Local ischemic period: at this time, patients mainly manifest that the affected limbs are afraid of cold, the affected limbs have different degrees of pain, numbness and other symptoms, especially in cold weather or winter when the symptoms are aggravated, and some patients will have intermittent claudication. 2. Nutritional disorders: in this period, the numbness of the affected limbs, pain and other symptoms, intermittent claudication patients with claudication distance becomes shorter, some patients will have muscle atrophy, malnutrition and neurosensory disorders. 3. Necrotic stage: in this period, the limb ends of the affected limbs will appear dry gangrene or wet gangrene because of serious ischemia of the affected limbs, accompanied by high fever, severe pain and other symptoms. It is recommended that patients with thromboembolic vasculitis should consult a doctor for examination in time and take appropriate treatment under the guidance of a doctor.