Diabetic patients should not engage in frequent sex, too much excitement may lead to a rise in blood glucose, and the possibility of infection with pathogenic microorganisms is relatively greater, because diabetic patients have a weaker immune system. Poor control of blood sugar may affect sexual function, should not have frequent sex. Frequent sexual intercourse in diabetic patients may cause an increase in the secretion of glucagon, such as adrenal hormone, leading to a rise in blood sugar. Moreover, diabetic patients themselves have reduced immunity and are prone to pathogenic microbial infections, and frequent sex is more likely to cause infectious diseases. If the duration of diabetes is long and the blood sugar control is not good, the sexual function may be affected, and frequent sexual life should not be carried out. Patients diagnosed with diabetes should actively cooperate with the doctor’s treatment and maintain a moderate sex life.