If the condition of the patient with diabetes is relatively mild, it will not cause much impact on sexual function, but if the situation is more serious, it is easy to affect sexual function, more serious diabetes will not only affect sexual function, but also affect the function of fertility. If diabetes is serious, it will affect the erectile function of men, because this disease will cause the hardening of the blood vessels of men, the patient’s vascular sclerosis is more serious, over time will involve the small arteries of the penile corpus cavernosum, the normal erection of the penis is completed by blood filling, easy to appear the penis can not be erect, causing the symptoms of male impotence, thus affecting the sexual function of men caused by sexual dysfunction disease. For sexual life will also be greatly affected. Diabetes can easily cause neuropathy, which can also lead to decreased penile sensitivity and reduced sexual function, so it is important to control and treat diabetes as early as possible after it is discovered.