Today two inpatients in the endocrinology department came to me for consultation, both of them were impotent patients and diabetic patients for many years. Both patients had one common feature: they ate and drank indiscriminately in their 30s and developed diabetes, but they did not pay attention to it, did not control their diet, continued to eat meat and drink in big bowls, and now their blood sugar is very high and they had to be hospitalized to control their blood sugar. The patient said to me that he had already had an unsatisfactory sex life 2 years ago, and he has had no sex life for the past 6 months, that is, the longest nocturnal penile erection a man can have is gone. Diabetes affects microangiopathy, and the penile arteries of diabetic patients are prone to atherosclerotic plaques, leading to narrowing of the lumen, slowing of blood flow in the vessels, and inability of the penis to get an adequate erection leading to impotence. Because the blood vessels in the penis are relatively small, the appearance of sexual hypogonadism occurs much earlier than in cardiovascular diseases. Therefore, many male scholars believe that sexual dysfunction is a precursor of cardiovascular disease. So remind the friends with diminished sexual life, when you feel that your sexual life is much less than before, please pay attention to blood sugar. If it is clear that you have diabetes, please control your blood sugar actively. With the help of male doctors and endocrinologists, you can regain your “sexual happiness”.