Dialysis patients can protect the endocardial fistula through routine care and infection prevention. 1. Routine care: dialysis patients need to pay attention to the endocardial fistula is only used for hemodialysis, try to avoid the endocardial fistula side of the limb blood sampling, rehydration, measurement of blood pressure, etc.; endocardial fistula side of the limb to avoid forceful activities, moderate exercise to increase the blood flow; avoid the endocardial fistula side of the limb to avoid pressure down the body, to prevent endocardial fistula blockage; hemodialysis end of the compression of the hemostasis of blood for 15-30 minutes, etc.. 2. Prevent infection: dialysis patients should change the dressing regularly to prevent secondary bacterial infection; keep the endocardial fistula limb clean and dry; try to avoid scratching the skin at the endocardial fistula; try to avoid contaminating the sterilized towel during dialysis. There may be other ways to protect the internal fistula, if dialysis patients find the internal fistula abnormality, it is recommended to go to the regular hospital in a timely manner, under the guidance of the doctor standardized treatment.