After the consultation, an enhanced abdominal CT was done for Song, and he was diagnosed with “bilateral common iliac artery and internal iliac artery aneurysm”, i.e. aneurysm. To the general public, “aneurysm” is an unfamiliar term, and many people may misunderstand it as a tumor growing on the artery after hearing it. In fact, an aneurysm is not a tumor, but a diseased dilatation of an artery. It is like a water pipe. If the structure of the pipe wall is damaged, a part of the pipe will be blown up like a balloon under the action of water pressure. When the pressure reaches a certain limit this balloon will rupture. Once the aneurysm ruptures, the mortality rate is very high. The widest part of this aneurysm is more than 5 cm and also involves the abdominal aorta, which is like having several time bombs in your stomach that may explode at any time, so you must receive surgery as soon as possible. Traditional surgery requires a median incision to open the abdomen and take out all the organs inside the abdomen in order to see the abdominal aorta and bilateral iliac arteries at the very back of the abdomen, then the diseased vessels are removed and “Y”-shaped bifurcated artificial vessels are sewn on. The entire operation is very traumatic, with an incision of at least 30 cm, which is undoubtedly too much for the elderly Song to bear. At present, the preferred technique for elderly aneurysm patients like Song is intraluminal repair, which is to cut the femoral arteries bilaterally from the thighs, and then place the stent with artificial blood vessels inside the aneurysm cavity through the arterial incision, which can reduce the surgical incision from 30 cm to 5-7 cm. Considering the patient’s poor physical condition, Dr. Ge Jin and Dr. Wang Xiang decided to adopt a technique different from the one used by most domestic vascular specialists to cut the bilateral femoral arteries – the percutaneous puncture technique, which only requires a 0.5 cm puncture to complete the entire operation. The procedure is performed by making a 0.5 cm incision in the bilateral femoral arteries of the thigh with a sharp knife blade, and then using a puncture needle to enter the diseased arterial vessels, and opening the pathway between the outside world and the diseased vessels through the puncture needle. The entire procedure is performed by skin puncture and suturing the vessels under the skin, without the need for a large surgical incision. The operation can be completed under local anesthesia, with less bleeding, fewer post-operative complications, and smaller scars. The surgical puncture opening does not need to be removed and changed, and the patient does not need to be sent to the monitoring room as usual.