Creatinine after abdominal dialysis is still 1400μmol/L may be due to insufficient dialysis or inappropriate diet, you can consider following the doctor’s advice to increase the number of times of abdominal dialysis, increase the concentration of peritoneal dialysis solution, increase the time of abdominal retention in each exchange as well as increase or change to hemodialysis, adjust the diet and so on. If the creatinine after peritoneal dialysis is 1,400 μmol/L, if the peritoneal dialysis is done 3 times a day, you can consider increasing the number of times of peritoneal dialysis to 4 times a day; if you usually use peritoneal dialysis solution with 1.5% concentration, you can consider changing it to 2.5% or 4.5%, or alternating between 1.5% and 2.5%; or you can increase the time of abdominal retention of the peritoneal dialysis solution for its full exchange, and so on. If creatinine does not change by adjusting the above methods of peritoneal dialysis, then it is recommended to increase or change to hemodialysis to reduce the occurrence of complications. At the same time, patients on dialysis who eat too much meat, eggs and high protein foods will easily cause creatinine to rise, and when it exceeds the ability of dialysis, it will lead to higher and higher creatinine. Dietary advice is low-salt, low-fat, high-quality low-protein and low-phosphorus diet. It is recommended that patients usually do not eat too much food at one time, and to control the intake of food. After abdominal dialysis, if creatinine does not decrease significantly or appears to be elevated, you should consult a doctor in time to find out the cause and follow the doctor’s advice to choose the most suitable treatment.