Taking metformin keep feeling thirsty may be due to poor blood sugar control or drinking too little water and other reasons, you can follow the doctor’s instructions to adjust the dose of metformin medication or pay attention to drink more water. Most of the diabetic patients will have symptoms such as thirst, eating more, drinking more, urinating more, weight loss, etc. If the patient is taking metformin dose is not enough to cause poor control of blood glucose value, the patient may experience thirst and other symptoms of diabetes. It is recommended to closely monitor blood glucose and adjust the dosage of metformin as prescribed by the doctor. In addition, patients need to strictly control the diet, choose low-salt, low-fat, low-sugar diet, eat more vegetables and fruits, food rich in dietary fiber, along with moderate aerobic exercise, to maintain body weight in the normal range, are helpful to patients to control blood glucose. Metformin needs to be used under the guidance of a doctor, and if there is any discomfort during the use of the drug, go to the hospital in time.