What happens if both kidneys fail completely?

Medical, clear and compassionate answer: If both kidneys fail (end-stage renal disease), the body can no longer remove waste, balance electrolytes, or regulate fluid — this leads to life-threatening conditions (high potassium, fluid overload, acidosis, uremia). Treatment options: - Dialysis (hemodialysis or peritoneal dialysis) to perform the filtering function artificially. - Kidney transplantation offers a more permanent solution if the patient is eligible and a donor is available. Without dialysis or transplant, complete kidney failure is fatal over days to weeks depending on severity. Immediate medical care is essential; symptoms include breathlessness, severe fatigue, confusion, swelling, and reduced urine output.