Patients with vasculitis do not necessarily need amputation, although the disease mainly involves the distal middle and small arteries of the extremities, the accompanying veins are often involved, the main clinical manifestations are coldness and abnormal sensation in the affected limbs, pain, intermittent claudication, resting pain, skin color change, weakening or loss of arterial fluctuations, skin dystrophy and wandering thrombotic superficial phlebitis, but it does not mean that such patients do not have the opportunity to operate, quite A significant proportion of patients only have occlusion of the superficial femoral artery, and at least one artery is still open in the distal outflow tract, which creates the basic conditions for surgery. Patients with vasculitis who undergo revascularization for femoral-N artery stenosis or occlusion have a 5-year patency rate of 62% and 48%, respectively, if they have good outflow tracts, so patients with this disease still have the opportunity to ensure the limb.