The risk of varicose veins after surgical treatment depends on the different surgical and anesthesia methods. The surgical approach can be divided into traditional and minimally invasive surgical approaches. The anesthesia during surgery can be divided into general anesthesia, intralesional anesthesia and local anesthesia. Different surgical and anesthesia modalities cause different hazards after varicose vein surgery. The traditional surgical treatment includes high ligation and stripping of the main trunk of the saphenous vein, which is more invasive and has a long incision, with the possibility of subcutaneous tissue bruising, lower limb swelling, insensitive skin sensation, and incision infection after surgery. More serious is the formation of deep vein thrombosis. If the deep vein thrombosis is dislodged, it will lead to pulmonary embolism, and a serious pulmonary embolism will endanger the patient’s life. Minimally invasive surgical treatment modalities have less impact on the patient, quicker recovery, less pain, and can achieve same day hospitalization and same day discharge. By mastering the key steps, the hazards after varicose vein surgery are reduced, but the cost is more expensive. Among the different types of anesthesia, intralesional anesthesia has more complications and general anesthesia has less complications appearing, if you choose intravenous radiofrequency and other methods, you can choose local anesthesia so that the trauma to the patient is minimized.