The lack of desire to urinate may be caused by physiological reasons, or may be caused by pathological reasons. For example, it may be drinking less water, resulting in less urine in the bladder, there is no desire to urinate, the patient drink appropriate water, the bladder of urine reaches a certain amount of urine, will produce the desire to urinate, is no need for special treatment. Some patients may have pathologic reasons, such as upper urinary tract obstruction, resulting in the urine in the kidney can not be discharged into the bladder, resulting in anuria, which may cause damage to renal function. Upper urinary tract obstruction should be lifted in time, which can allow the urine from the kidneys to be discharged into the bladder and out of the body through the bladder, in order to maximize the protection of the patient’s renal function, or else it is prone to serious consequences.