Patient: 7 years of polycystic kidney, poor kidney function, now weak limbs, swelling, high blood pressure, can abdominal dialysis be done? Is the cost high? Mao Zhiguo: Patients with polycystic kidney who enter renal failure can likewise choose between peritoneal dialysis and hemodialysis. If the volume of bilateral polycystic kidneys is not particularly large and there is no significant increase in abdominal pressure and thoracic compression, peritoneal dialysis is an option. In fact, there are many benefits of peritoneal dialysis for patients with polycystic kidney disease, such as protection of residual kidney function, easier control of blood pressure, and less prone to bleeding complications. Peritoneal dialysis, if performed successfully, is less expensive than hemodialysis. The state is also working to adjust the price of peritoneal dialysis fluid, and the total cost of peritoneal dialysis is expected to be further reduced in the future, which is certainly good news for the majority of dialysis patients.