The position of the right and left femoral arteries is symmetrical, it is the main artery of the lower limb, it is the direct continuation of the external iliac artery downward, it goes downward within the femoral triangle, it passes through the adductor tubercle and then exits the adductor tendon fissure to the popliteal fossa, which is the diamond shaped iliac fossa posterior to the knee, where it migrates into the femoral artery femoral. The femoral artery is an important branch of the femoral artery, such as the deep femoral artery, the medial femoral artery, the lateral femoral artery, etc. The femoral artery is a very important artery, and the femoral artery is commonly used for the placement of certain deep veins, such as bone puncture, and lower extremity venous thrombosis, mesenteric vein thrombosis, and the large vascular surgeon will often be through the femoral artery interventional equipment, to remove the thrombus.