There is no clear standard for diabetic patients to drink more, the patient’s water intake is significantly increased compared with the usual, and the daily urinary output is more than 2500ml, which is considered as the symptom of diabetic patients to drink more and urinate more. Typical symptoms of diabetic patients are drinking more, urinating more, eating more, thirst, drinking more water can not completely relieve the symptoms of thirst, thirst prompts the patient to drink more water, drink more water will urinate more; in addition, diabetic patients are also accompanied by unexplained weight loss, fast hunger and some other symptoms. Diabetes can not be diagnosed solely on the basis of the symptoms of diabetes, such as drinking, urinating, eating, weight loss, etc., you need to do a blood glucose test, clinical symptoms combined with the results of the examination of the comprehensive diagnosis. Diabetic patients should actively seek medical attention, do not self-medication, to avoid adverse results.