Early varicose veins of lower extremities have no obvious discomfort symptoms, only the bruises are tortuous and dilated, which are obvious when standing and reduced or disappeared when lying down or elevating the lower extremities, but as the disease gradually aggravates, it can be accompanied by lower extremity sinking, discomfort, soreness, some patients say they have leg trouble and so on. Local swelling may also appear. Further progress of the disease, there can also be 4 major secondary diseases: 1, thrombotic superficial phlebitis: due to the lower limb veins tortuous deformation, blood flow appears slow, easy to appear thrombosis, resulting in the occurrence of thrombotic superficial phlebitis, clinically manifested as local redness and swelling strips, swelling and pain, increased skin temperature. 2, stasis dermatitis: the skin appears discoloration, early dark red, gradually develop, the color worsens, and even become dark brown. At the same time, the skin appears oozing, or dry, lusterless, with itching. 3.Once the skin is broken, it develops into the third secondary disease: chronic ulcer of lower limbs, commonly known as “old rotten leg”. Because of long-term varicose veins, resulting in local stasis, nutritional disorders, ulcers occur after a long time, or even up to several years. 4.Bleeding: It is generally thought that the bleeding of veins is not serious, but sometimes the bleeding of varicose veins is also very dangerous, the bleeding is very large, and even hemorrhagic shock occurs. Surgical treatment methods for varicose veins: The surgical treatment methods for varicose veins are traditional vein stripping, mass excision, varicose vein laser or cryosurgery, intravenous drug injection, and the application of modern can be minimally invasive laser treatment. Whatever the method has its indications and advantages and disadvantages. For example, traditional surgery, the treatment effect is good, surgical excision is complete, the recurrence rate is low, but the storage damage is big, the post-operative recovery time scar affects the beauty, or the incision does not heal the situation. In contrast, laser, freezing, and local drug injection are more suitable for patients with very limited varicosities, or recurrence after surgery, or young women with cosmetic requirements. Infinitely expanding the indications for various methods is irresponsible to the majority of patients.