The number of years a patient with uremia can live is related to the cause of his or her disease, whether or not he or she is actively receiving treatment, and other factors, and there is some individual variation. In cases of uremia caused by infection or minor brain injury, recovery is usually possible after treatment of the primary cause and the patient’s survival is not significantly affected. In idiopathic uremia, long-term remission can be achieved with standard treatment and water intake, and survival is not affected. If the cause of uremia is an intracranial tumor or a systemic disease, survival may be shortened, but some patients can survive for more than 30 years. In addition, if the patient is older, the thirst center is insensitive, and failure to take in enough water in time causes dehydration or even shock, the patient’s life may be in danger at any time. Therefore, it is necessary to visit the nephrology department of the hospital promptly after suffering from urolithiasis, and patients should pay attention to hydration.