Long-term smoking tends to cause vascular lesions in the penis, thus causing hardening and narrowing of the penile blood vessels, which clinically tends to cause insufficient blood supply to the cavernous body, thus causing symptoms of impotence. For the treatment of this condition, the first step is to quit smoking and stop smoking, and then it can be treated by oral medication. At present, we are good at using drugs, such as Viagra, Vanfyl, etc. These drugs can effectively improve the content of nitric oxide in the cavernous body of the penis in the erect state, thus stretching the arteries of the penis, increasing the blood supply to the cavernous body, further improving the hardness and duration of the erection, and improving the symptoms of impotence. In addition, patients should pay attention to a low-fat diet, less oily food and more vegetables and fruits in their usual diet, which can help improve the symptoms.