Pate reported that arteriovenous fistulas occurring in direct branches of the aorta can occur as early as 6 weeks after trauma with heart failure in the majority of limbs, presenting with localized pain, ascites, and abdominal pain early after surgery in 9 of the cases where cardiac resection occurred. The diagnosis of an arteriovenous fistula is generally not difficult. In the history of penetrating trauma, the patient may find a pulsating mass on his own and there is a local humming sound. The diagnosis of arteriovenous fistula should be considered when there is swelling of one limb, varicose veins and venous valve insufficiency, higher local skin temperature than the contralateral limb, and scarring, murmurs, and tremors at the site of injury. Patients with acute arteriovenous fistula often have severe multiple trauma or penetrating injuries to the limb. The diagnosis and management of arteriovenous fistulas is often delayed because the patient is examined and attention is focused on the site of severe skeletal and soft tissue injury. It is advisable to eat foods that have protection against the side effects of chemotherapy and efficacy: shiitake mushrooms, silver ears, black fungus, yellow cauliflower, walnuts, sesame seeds, sunflower seeds, kiwi, sheep’s blood, pig’s blood, goose’s blood, chicken’s blood, lotus seeds, mung beans, barley, carp, green beans, sturgeon, shark, plum, almond, Buddha’s hand. Besides the above foods, patients can also eat more foods rich in selenium, such as purple potatoes, oysters, cabbage, asparagus, mushrooms, etc. The element selenium in these foods can well enhance the immune function of patients and improve their physique, and selenium can also affect the metabolism of tumors and inhibit their proliferation, which can help patients improve the quality of survival and avoid tumor deterioration or distant metastasis at a later stage. This helps patients to improve the quality of survival and avoid tumor deterioration or distant metastasis in later stages.