The arteriovenous fistula is a well-known “lifeline” for uremic patients, and medical workers, like patients, should care for the arteriovenous fistula like an eye. This is a good way to improve the quality of life and dialysis for uremic patients. 1, the puncture needs to be “ladder-like” puncture, that is, each puncture point is about 1cm away from the previous puncture point, and the puncture is rotated to try to puncture the entire length of the vein section, which can avoid repeated punctures of the same part of the vein leading to local thrombosis, venous aneurysm-like dilatation, stenosis and other complications, and can also greatly extend the The use of arteriovenous endovascular fistula time and long-term usual rate (I have seen many uremic patients with arteriovenous endovascular fistula occlusion in the clinic, most of them are because the puncture site repeatedly concentrated in one place, which leads to local venous damage, thrombosis, occlusion, venous aneurysmal dilatation and other complications caused! (On the contrary, long-used arteriovenous fistulas are very good at avoiding the “bad habit” of repeatedly puncturing the same site, so health care workers must remember to avoid repeatedly puncturing the same part of the arteriovenous fistula.) 2. Strict disinfection before puncture. It is best to sterilize the puncture area and wear sterile gloves before puncturing to avoid incomplete skin disinfection or finger disinfection, which can lead to endovenous fistula infection during touching the arteriovenous fistula, which is especially important during dialysis with artificial vascular arteriovenous fistula, because unlike autologous arteriovenous fistula, the resistance of artificial vascular arteriovenous fistula to infection is particularly fragile, and once the infection is difficult to cure by Most of them require removal of the artificial vessel! For uremic patients, removal of the artificial blood vessels means the loss of the lifeline to dialysis and the need to re-operate to reconstruct the hemodialysis access, and the vascular condition of such uremic patients is usually very poor, and it is very difficult to reconstruct the dialysis access. 3. Moderate compression after the end of dialysis. In other words, after dialysis is finished, the puncture needle is removed and the puncture eye needs to be compressed to stop bleeding, the strength of compression is very important, generally the strength of compression is appropriate for the needle eye not to bleed, but to be able to touch the tremor of the arteriovenous fistula. If the compression is too tight, it will easily lead to occlusion of the arteriovenous fistula, and if the compression is too loose, the eye of the needle will bleed easily. 4, to educate the uremic patients in daily life to observe the murmur and tremor of the arteriovenous fistula, once found murmur or tremor becomes weak, need to promptly seek medical treatment.