There are two different types of dialysis, hemodialysis, and peritoneal dialysis. In hemodialysis, blood is pumped from the patient into the dialysis machine in which the blood is ultra-filtered and the extra fluid with unwanted substance will be removed and the cleaned blood is returned back into the patient’s body. With peritoneal dialysis, the peritoneal membrane, a thin-walled membrane within the abdominal cavity can exchange extra fluid and unwanted substances across itself into the dialysate fluid that has been pumped into the abdominal cavity via a catheter that has been placed or permanently. After this exchange has occurred the dialysate is then removed from the abdominal cavity via the catheter.