Eating metformin night urine becomes more may be due to the effect of diabetes itself, and secondly, if there is a urinary tract infection during the medication may cause the phenomenon of night urine becomes more, it is recommended to consult a doctor. 1. Diabetes: If the blood sugar is high, then the utilization of glucose will be reduced, which in turn leads to osmotic pressure becomes high, osmotic diuresis, resulting in nocturia. To address this problem, in addition to complying with the doctor’s instructions to actively use drugs, but also need to learn more about diabetes care knowledge, appropriate changes in eating habits. 2. Urinary system infection: during the onset of diabetes, the body’s immunity will be different degrees of decline, easy to cause urinary system infection, the symptoms of nocturia. It is recommended to go to the hospital for examination and treatment with targeted anti-infective drugs, while actively controlling blood sugar to prevent and delay complications. Metformin is one of the most important drugs used to treat diabetes, which usually does not lead to more nocturia. Therefore, if this symptom persists for a long time, you should go to the hospital in time and get a clear diagnosis under the guidance of your doctor.