Excessive urination usually requires routine urinalysis, urodynamics, urinary ultrasound, thyroid function tests, and blood glucose. Excessive urination may be caused by urinary tract infection, overactive bladder syndrome, endocrine diseases and so on. 1. Urine routine examination: it can check whether there are abnormal red blood cells and white blood cells in the urine, etc., and clarify whether there is a urinary tract infection. 2. Urodynamic examination: it can clarify the bladder function and whether the contraction ability is normal or not, and it can check whether there is overactive bladder disease. 3. Ultrasound of the urinary system: it can check the image of the urinary system and know whether there is prostate hyperplasia, as well as tumors, stones and other occupying diseases. 4. Thyroid function test: it can check whether there is hyperthyroidism caused by metabolic increase, resulting in excessive urination and other phenomena. 5. Blood sugar test: mainly check whether there is a sugar metabolism disorder caused by increased urination. Urine to be more should go to the hospital in a timely manner to check, clarify the cause of the disease, follow the doctor’s instructions for treatment.