Drinking a glass of water to go to the toilet several times may be caused by drinking too much water, mental factors and symptoms such as urethritis. 1. Drinking too much water: When patients drink too much water, the kidneys will accelerate the filtration of water, urine discharge increased, which is a normal physiological phenomenon. 2. Mental factors: when the patient in the nervous or stressful situation, after drinking water, there will be symptoms of increased urination. 3. Urethritis or cystitis: Inflammation of the urethra or bladder due to bacterial infection can be manifested as frequent urination, urinary urgency, urinary pain and other symptoms, and even fever. Patients with frequent urination and other phenomena, it is recommended that patients go to the hospital in a timely manner to improve the relevant examination to clarify the cause of the disease, and under the guidance of the doctor to carry out the correct treatment.