Peritoneal Dialysis is a way of cleaning wastes and extra fluid from the blood artificially when the kidneys don’t function normally. A soft tube is used to fill the abdomen with a cleansing liquid called dialysis solution. Wastes and extra fluid pass from the blood through a membrane in the abdomen called the peritoneum. The wastes and extra fluid go into the dialysis solution and they leave the body when the dialysis solution is drained. Peritoneal dialysis is usually done 4 times a week.