Maintenance hemodialysis is a form of renal replacement therapy in which patients with end-stage renal disease undergo regular dialysis treatments to remove waste products and excess fluids from their blood. This treatment is necessary because the kidneys are no longer able to perform their normal function of filtering the blood and regulating electrolyte and fluid balance. Maintenance hemodialysis typically involves treatment sessions lasting 3-4 hours, three times per week. During these sessions, blood is circulated through a machine that filters out waste and excess fluid, then returns the cleaned blood back to the body. Patients may receive medication to prevent blood clots and regulate blood pressure during treatment. This form of treatment is crucial for maintaining the health and well-being of patients with end-stage renal disease, as it helps manage symptoms and complications associated with kidney failure. Regular maintenance hemodialysis can prolong the lives of patients and improve their quality of life.