The 42-year-old Mr. Zhang has suffered from varicose veins for several 10 years, although he has done saphenous varicose surgery, but his calf is still often dark, hard and rotten. This “old rotten leg” makes him suffer a lot. Not long ago, Mr. Zhang came to the interventional vascular surgery department of the second hospital in Handan, Hebei province, accompanied by his family, and was cured by using minimally invasive laparoscopic deep subfascial traffic branch dissection. According to Li Yanjie, the deputy chief physician of interventional vascular surgery of the hospital, Mr. Zhang’s varicose veins were often rotten because of the incomplete closure of the deep fascia valves in the lower limbs and the opening of the traffic branch vessels complicated by peri-annular scleroderma and ulcers in the lower limbs. If open surgery is performed according to the conventional treatment, there is almost no open area and it is likely that the wound will not heal after the open surgery. So they decided to use the minimally invasive technique, which is to make two small holes less than 1 cm in diameter in the normal skin above the patient’s diseased calf, and cut the traffic vein (diseased vessel) at the lesion under laparoscopic guidance, so as to cure the “rotten leg” by blocking the dysfunctional traffic vein on the inner side of the calf, reducing the venous reflux in the boot area and lowering the upright venous pressure “The patient can go to the ground on the day after surgery. The patient was able to move on the ground on the day after surgery and was discharged a week later. Mr. Zhang’s “old rotten leg” was finally cured.