Impotence caused by smoking can usually be cured by quitting smoking and active and effective treatment. Nicotine produced by smoking will strongly stimulate the central nervous system, making it in a state of excitement. Therefore, long-term smoking will increase the difficulty of the central nervous system to produce sexual excitement, and it is easy to appear impotence symptoms; at the same time, it is easy to cause penile vascular sclerosis, poor blood circulation, and impotence symptoms due to insufficient blood supply to the corpus cavernosum. Therefore, long-term smoking is likely to cause impotence. Patients can take sildenafil and other medications to increase the blood supply to the cavernous body and improve the hardness of penile erection. At the same time to quit smoking, completely eradicate the causes of impotence; diet to low-fat food, eat less greasy, spicy stimulating food. After active and effective conditioning and treatment, generally can be cured. Patients with symptoms of impotence are advised to go to a regular hospital and be treated under the guidance of a doctor.