Patients with high blood sugar can drink a small amount of alcohol, but the daily amount of alcohol should be limited, beer should not exceed 400mL, white wine should not exceed 50mL, red wine should not exceed 200mL, and do not drink alcohol every day, drinking alcohol will lead to blood sugar fluctuations, which is not conducive to long-term blood sugar stability and standards. If you drink alcohol on an empty stomach, it will inhibit the output of glucose in the liver and cause hypoglycemia, especially after drinking alcohol, it is difficult to distinguish between hypoglycemia and drunkenness, and it is easy to be dangerous, and it will lead to a significant increase in blood sugar a few days after drinking alcohol. Long-term alcohol consumption will also increase the burden on the liver and cause diseases such as fatty liver and alcoholic liver, which will also have adverse effects on the body, so patients with high blood sugar should avoid drinking alcohol as much as possible.