Peritoneal Dialysis is another type of dialysis treatment that uses the patient's own peritoneal membrane, which lines the inside of the abdomen, as a filter. During peritoneal dialysis, a special fluid called dialysate is introduced into the patient's abdomen through a small tube. The dialysate draws waste products and extra fluid from the patient's blood into the abdomen, where it is then drained out of the body. Peritoneal dialysis can be done at home, and the patient typically does several exchanges of dialysate throughout the day.