The need for lifelong dialysis depends mainly on the cause of the elevation. If the elevated potassium is caused by excessive intake of potassium ions, acute renal failure, etc., life-long dialysis is usually not required; if the elevated potassium is caused by uremia, life-long dialysis is required. Dialysis is the most effective way to lower blood potassium. Dialysis is required when medical treatment fails to lower blood potassium. If the elevated blood potassium is caused by excessive oral or intravenous input of potassium, acute renal failure, etc., after dialysis to reduce potassium, the intake of potassium ions is stopped and the reversible factors are corrected, the renal function will return to normal, and lifelong dialysis will not be required at this time. If patients with uremia have elevated blood potassium due to impaired potassium excretion, they still need lifelong dialysis treatment after their blood potassium returns to normal. If patients have elevated blood potassium, it is recommended to go to regular hospitals in time for consultation and standardized treatment under the guidance of doctors.