The number of patients receiving hemodialysis treatment is also growing rapidly, and most patients undergoing hemodialysis do so through an arteriovenous fistula as the dialysis access, which is the “lifeline” for uremic patients. So how should you maintain this precious lifeline in your daily life? First, you should learn to observe whether the arteriovenous fistula is open or not, there are two common methods: 1, touch the fistula opening with your hand, generally mature fistulas with sufficient flow can be touched with an obvious trembling sensation (i.e. it feels like water flowing under the fingertips). The better the flow of the fistula, the more obvious the murmur and tremor. If you suddenly find that the murmur and tremor are significantly weakened, you need to be alert to the possibility of arteriovenous fistula occlusion and go to the hospital immediately for treatment. In addition, we should also pay attention to avoid heavy physical activities on the upper limb of the side of the arteriovenous endovascular fistula, avoid excessive flexion, avoid sleeping with the upper limb of the side of the arteriovenous endovascular fistula lying on its side, avoid trauma to the arteriovenous endovascular fistula and so on. Only by paying attention to protection in daily life can the lifeline of arteriovenous endovascular fistula be kept open for as long as possible, thus improving the quality of life and dialysis for uremic patients.