A dialysis fistula, also known as an arteriovenous endovascular fistula, is one of the important vascular accesses during dialysis treatment, and an arteriovenous anastomosis is required to achieve dialysis blood flow requirements. Arteriovenous endovascular fistulas are one of the most desirable permanent vascular accesses and include both autologous and artificial vascular endovascular fistulas. Autologous arteriovenous endovascular fistulas are usually chosen to anastomose the radial or brachial artery to the cephalic vein or vein of great importance in order to “arterialize” the superficial veins of the forearm, so that the blood flow rate of up to 400 ml/min, and easy to puncture. New patients with endovascular fistulae often have mild edema, which can be reduced by elevating the limb on the side of the endovascular fistula or by increasing hand movement. It is important not to give fluids to the limb on the side of the fistula, take blood pressure, or lie on that side for long periods of time to avoid obstruction of the fistula due to compression and distortion of the endovascularization. Dialysis fistulas are recommended to be completed early, preferably about 3 months before the start of hemodialysis, to facilitate fistula maturation and functional evaluation or repair of the fistula. Arteriovenous endovascular fistula is the lifeline of dialysis patients, if there is any abnormality, such as vasovagal tremor weakening, etc., you need to consult the hospital in a timely manner, and improve the examination and treatment under the guidance of the doctor.