Femoral artery puncture has some common hazards, that is, complications: first, local formation of arteriovenous fistula after puncture, the patient may also present with a local pulsating mass, accompanied by pain, or even swelling or numbness of the lower limbs. Second, subcutaneous hematoma at the puncture site, mainly due to insufficient local compression time after puncture, or poor compression. In addition, patients with abnormal coagulation mechanisms are also prone to bleeding complications. Therefore, during the surgical operation, attention should be paid to careful disinfection and timely postoperative compression. Third, it is easy to have secondary infection, which is also a common complication. Postoperatively, especially for immunocompromised patients or patients with combined local soft tissue infections, anti-infective drugs should be applied in conjunction, and broad-spectrum penicillin sodium can be chosen for intravenous input.