Renal replacement therapy refers to the medical intervention used to replace the normal functions of the kidneys when they are no longer able to perform their essential role in the body. This therapy is typically used for individuals suffering from kidney failure or end-stage renal disease. Renal replacement therapy includes treatments such as dialysis (hemodialysis or peritoneal dialysis) and kidney transplantation. These interventions help remove waste products and excess fluids from the body, maintain electrolyte balance, and regulate blood pressure. Renal replacement therapy plays a vital role in improving the quality of life and prolonging survival for individuals with severe kidney dysfunction.