The quality of the endovascular fistula is closely related to the adequacy of dialysis and the patient’s prognosis, and should be monitored and protected. The following matters should be noted: 1, after the operation with a soft pillow to elevate the limb, generally slightly higher than the heart position, in order to facilitate the return of blood to the limb swelling; 2, to avoid exposure of the operated limb to too hot or too cold environment, loose sleeves, bandages loose and tight, the wound and the operated limb do not pressure; prohibited in the fistula side limb blood pressure, blood transfusion, transfusion, blood collection, etc.; 3, to keep the surgical wound clean and dry, to prevent infection; pay attention to Observe the surgical site for bleeding, hematoma and other abnormalities; change the wound medication regularly; 4, check the arteriovenous fistula daily for patency, monitor vascular tremor, vascular murmur, and inform the medical staff of any abnormalities; 5, avoid hypotension, excessive dehydration, hypoglycemia, etc.; adjust the antihypertensive medication at any time; do not compress the fistula or the cannula when sleeping. 6.Adhere to medical advice, take medication regularly and maintain good blood pressure. 7.Adhere to medical advice, reasonable diet and water control, and appropriate exercise. 8, about 16 days after surgery according to the wound healing situation by the specialist medical staff to decide the timing and way to remove the stitches; 9, 6 to 8 weeks after surgery according to the maturity of the internal fistula can start trial. 10.Adhere to good hygiene habits and make sure your arm is clean before dialysis. 11.Do not touch the sterile area with your hands after skin disinfection or during dialysis treatment. 12.Adhere to the “puncture protocol” and change the puncture site with the nurse. 13.Adhere to the principle of light pressure on the puncture site to stop bleeding after the dialysis needle is pulled out, and the pressure should be strong enough to stop the bleeding without weakening the tremor. 14, do not wear watches, jewelry, and avoid tight sleeves on the side of the internal fistula or graft vessels; do not carry heavy objects on the side of the limb of the internal fistula or graft vessels. 15.Do not administer intravenous drugs, draw blood and measure blood pressure on the endovascular side of the fistula or graft. 16, regular monitoring of internal fistula flow and venous pressure, and early treatment of any abnormalities.