The time that can live with one kidney cut, and a normal person is the same, because the kidney a, can also completely the body of toxins out of the body, will not appear blood urea nitrogen, creatinine and other kidney function appears abnormal, is completely normal organism. However, patients with one kidney should pay attention to: First, pay attention to rest, avoid straining, and try to avoid colds. Second, avoid nephrotoxic drugs, such as avoiding Chinese medicine, antipyretic and painkillers, etc. Third, do not do any operation on the residual kidney, such as do not perform kidney puncture and kidney cyst drainage and other operations. It is recommended to review the blood routine, urine routine, ion kidney function every 6 months-1 year, regular review, early detection of disease early treatment, prevention of irreversible consequences of disease progression.