Lower extremity atherosclerotic occlusive disease covers the common iliac artery, external iliac artery, common femoral artery, superficial femoral artery, N artery and its branches, anterior tibial artery, posterior tibial artery, and peroneal artery. How is lower extremity arteriosclerosis occlusive disease treated? According to the degree and extent of lesions, the overall treatment includes three types of treatment: 1. Conservative medication: combined with exercise to establish collateral branches to improve blood flow. Commonly used infusion drugs include Kaiser (prostaglandin E1), Guipizide maleate, Ginkgo biloba injection and other vasodilator drugs, oral BAY aspirin, cilostazol (PEDA), Ambulac (Sagrelate hydrochloride), Dana, Kinnado, etc. The effect of cilostazol (PEDA) and Ambulac (sagresol hydrochloride) is better. 2.Interventional endoluminal treatment: After puncturing the vessel to establish access, the catheter guidewire is passed through the stenotic or occluded segment, the balloon is dilated and the stent is implanted to reopen the blood flow. The advantage is to avoid major surgical trauma and to allow for re-intervention or bypass surgery after recurrence. 3.Bypass surgery: Autologous saphenous vein or artificial vessel can be used, and different procedures can be performed according to the extent of the lesion. The advantage is that the treatment plan has existed for many years and the rate of re-occlusion is relatively certain. However, for patients with poor infrapopliteal outflow tracts, intervention or bypass has a higher risk of reocclusion. Specialists will recommend treatment options on a case-by-case basis. 1.Post-intervention or bypass medication: Generally, low-molecular heparin anticoagulation is given for 7-10 days, and oral bye aspirin 100mg once daily as the base, plus clopidogrel 50-75mg once daily, or cilostazol 50-100mg twice daily, or sargentine hydrochloride 100mg twice daily. 2. Supplemented with regular exercise: 3-4 times a day, 3-4 days a week, walking until lower extremity fatigue or symptoms appear 3-4 times each time. Primary underlying diseases such as hypertension, diabetes mellitus, hyperlipidemia, etc., control the risk factors of dangerous atherosclerosis. This is fundamental to all treatment.