Theoretically, it is believed that quitting smoking may have some improvement on male sexual function, so male patients should be encouraged to quit smoking. Smoking is a kind of bad life behavior, and the most important harm of smoking can lead to the spasm of small blood vessels, so that atherosclerosis aggravates, inducing the risk of cardiovascular disease, smoking damage to the lungs is also relatively large, can lead to malignant tumors of the lungs, the occurrence of chronic obstructive pulmonary disease, so to encourage the male patients do not smoke. Smoking is more harmful, can affect the vascular endothelium, so that the function of the vascular endothelium is damaged. When the endothelial function of the penis is affected, the blood volume of the penis will be reduced, which will affect the sex life, when smoking cessation after the endothelial function damage has been restored, may be able to make the sexual function has been strengthened. It is recommended that when men quit smoking, they can consult the smoking cessation clinic in regular hospitals.