How long a kidney dialysis patient can live is related to the general condition of the patient, whether or not there are combined complications and underlying diseases, so the survival period of each patient varies. The purpose of kidney dialysis is to replace the kidneys to remove harmful substances from the body and maintain the balance of water and electrolytes in the body, which may cause some complications at the same time. If the patient is young and has no complications or other underlying diseases, he or she can survive more than 20 years on dialysis, and even a small number of patients can survive more than 40 years. If the patient’s general condition is poor and combined with cardiovascular or cerebrovascular diseases or diabetes, the prognosis is often poor even if the patient stays on dialysis, and he or she may only survive for a few months or years. Patients who need dialysis must go to the hospital for dialysis treatment on time and pay attention to protect the dialysis tubing to avoid dislodging or causing infection.