The earliest symptoms of diabetes in men are mainly polydipsia, polyphagia, polyuria, wasting does not necessarily occur, many diabetic patients seen now have obesity, and obesity is a damaging factor for many diseases, such as kidney disease, cardiovascular disease, cerebrovascular disease, diabetes, etc., obesity is involved to a great extent. In the early stage when these symptoms appear, drinking and eating more, and thirst, go to the clinic or go to the hospital to check the blood sugar in time to see if there are any abnormalities in blood sugar. If fasting blood sugar is greater than 6.1mmol/L, but less than 7mmol/L, it indicates impaired glucose tolerance. If fasting blood sugar is greater than 7mmol/L or postprandial blood sugar is greater than 11.1mmol/L, type II diabetes can be diagnosed. Once diabetes is diagnosed, you should actively control your diet and increase physical exercise to control blood sugar through diet and exercise. If you can’t control your blood sugar, you need to apply insulin to treat it.