Varicose veins of the lower limbs are the most common disease in vascular surgery, with a high morbidity rate, conservatively estimated at 8.9% of the population in China, with more than one hundred million patients; there are many surgical methods, and the basic principle of varicose vein surgery of the lower limbs is to remove or occlude the diseased veins. The theory is that because the valves in the superficial veins of the lower limbs are closed, the venous blood not only fails to return the normal venous blood, but also causes the blood that has been returning through the normal deep veins to flow back through the varicose superficial veins again, affecting the normal venous circulation and metabolism, resulting in lower limb soreness, discomfort, dermatitis, skin pigmentation, and even ulcers, and affecting quality of life. Surgery is the main method of treating varicose veins of lower limbs, including: high ligation of saphenous vein + trunk stripping, modified high ligation minimally invasive stripping, transillumination rotary excision, and more and more minimally invasive endovascular treatments such as electrocoagulation, microwave, laser, radiofrequency, foam sclerotherapy, etc. in the recent decade, whose basic principle is that veins that need to be stripped off in the traditional surgery are removed through thermal (electrocoagulation, microwave, laser, radiofrequency) or chemical (e.g., laser, radiofrequency) energy, and the veins are removed through heat. The basic principle is to close the diseased vein by heat (electrocoagulation, microwave, laser, radiofrequency) or chemical (foam sclerotherapy) to block the backflow of the diseased superficial vein. The procedure is to make a small incision at the root of the thigh, perform high ligation of the saphenous vein, and then strip the saphenous vein trunk and varicose branch veins. This is a classic procedure with reliable results. However, hematoma, pain, numbness and other symptoms are more common in the postoperative recovery period, which is why many patients are afraid of the surgery; 2. Transillumination Rotational Cision Surgery Surgical Principle: The TriVex operating system is used to rotationally cut, twist and suction the entire varicose vein from outside the vascular wall out of the body. The same symptoms of hematoma, pain, numbness, etc. exist in the postoperative recovery period; 3. Vein closure (electrocoagulation, microwave, laser, radiofrequency) In recent years, with the rapid development of vascular endoluminal interventional technology, vascular surgical treatments have entered into the era of endoluminal treatment, and the same varicose vein treatment has also seen a number of minimally invasive endoluminal closure: electrocoagulation, microwave, laser, radiofrequency, etc., and the basic principle is that the large veins that would otherwise need to be surgically stripped off will be removed from the body. The basic principle is to change the main trunk of the saphenous vein, which originally needs to be surgically stripped, to be closed by thermal ablation to eliminate the superficial venous reflux; however, serious varicose veins still need to be united with point stripping. This kind of method has been able to achieve the effect of traditional stripping surgery, the advantages are less trauma, less incision and small in favor of aesthetics, slight pain in the postoperative recovery period, hematoma, numbness and other symptoms are relatively small, the same day after the operation can go down to the ground to walk normally, and the recovery is more rapid. The method of radiofrequency ablation for the treatment of varicose veins of the lower limbs, because the temperature of radiofrequency ablation is low, it is not easy to burn the skin, the postoperative pain is very mild, the probability of hematoma, deep vein thrombosis, infection, numbness and other complications is very low, the same day surgery, the same day down to the floor, the same day discharged from the day of the day of the day mode of day surgery, the surgery before and after the operation can be a normal diet and drink water, does not affect the normal life and work, and radiofrequency catheters have entered the The radiofrequency catheter has entered the list of reimbursement of Beijing medical insurance. 4. Foam sclerotherapy is to destroy the lining of the vein by injecting foam sclerosant into the diseased vein to make it close and to stop the venous reflux, which is suitable for mild varicose veins, capillary dilatation or reticular veins.