Peritoneal Dialysis: A Home-Based Option
What peritoneal dialysis is, how it uses the lining of the abdomen to filter blood, and who it may suit.
Last updated: 2026-09-24
Peritoneal dialysis cleans the blood inside the body. A sterile fluid is introduced into the abdomen through a soft, permanent catheter; the lining of the abdomen (peritoneum) acts as the filter, drawing waste into the fluid, which is then drained away.
Two forms
- CAPD — manual exchanges performed several times a day
- Automated peritoneal dialysis — a machine performs exchanges during sleep
Who it suits
Peritoneal dialysis suits people who value independence, can maintain a clean technique, and have a suitable home environment. It requires training and committed hygiene, because infection of the abdomen (peritonitis) is the principal risk.
Frequently asked questions
Is home peritoneal dialysis safe?
Yes, with proper training and hygiene it is safe and widely used. Regular laboratory tests monitor how well it is working.
Can I switch between hemodialysis and peritoneal dialysis?
Often yes. Switching depends on medical suitability and is a routine part of managing kidney failure over time.