Patients with varicose veins have this question: “My varicose veins have been there for many years, and they don’t hurt, do I have to have surgery?” Some other patients complain as soon as they enter the clinic, “My varicose veins were said to be operated many years ago by the doctor, but I put it off again and again and got this way, I really regret it!” For some elderly patients, the opportunity of surgery is lost because of physical reasons. These patients go from “no pain” to “regret”, what happened during that period? In fact, varicose veins are generally asymptomatic in the early stages except for the appearance of prominent bruises. However, as the disease progresses (usually after several years to ten years), the harm gradually appears. 1. Swelling. Due to the reflux of veins, patients often show morning light and evening heavy swelling of the affected limbs. It can be relieved after rest. 2, skin pigmentation. Long-term venous hypertension leads to increased capillary permeability in the calf area, making the skin darker and developing from dots to patches. 3.Ulcer. The later stages of varicose veins mostly cause nutritional changes in the skin, leading to the development of ulcers. These ulcers can be long-lasting, with local malodor and pus, which can bring serious impact on daily life and even malignant transformation. 4. Ulcers. The most common consequence of varicose veins is that varicose veins cause skin nutrient changes leading to the occurrence of ulcers, which can be long-lasting and locally foul-smelling and pus-flowing, which can bring serious impact on daily life and even malignant changes. Bleeding. The skin of the area through which the varicose vein passes is very fragile due to the lack of nutrition. Once careless, it is easy to cause the rupture of varicose vein thus causing hemorrhage. 5. Superficial vein thrombosis. Some patients can form thrombosis in the superficial varicose vein, which is characterized by local redness, swelling and pain, hard lump formation, and pain that affects walking. Because of these complications, early minimally invasive surgery can be considered once varicose veins are judged to be likely to develop. The benefits of early surgery are also obvious: firstly, minimally invasive surgery is possible, secondly, the postoperative recovery is quick and less painful, and thirdly, the deep vein valve function is improved and the recurrence rate is reduced.