Dialysis is a medical treatment that filters waste and excess fluid from the blood when the kidneys are unable to perform this function due to failure or damage. There are two main types of dialysis: hemodialysis, which uses a machine to filter blood outside the body, and peritoneal dialysis, which uses the lining of the abdomen to filter blood internally. This treatment is essential for patients with chronic kidney disease or acute kidney injury, helping to maintain fluid and electrolyte balance and remove toxins from the body