Smoking erectile dysfunction with

There is a higher incidence of impaired sexual function in men who take finasteride compared with placebo (58,59). The incidence of erectile dysfunction has been estimated at 5% (60), but it is difficult to estimate, since in many users of the drug other causes are present, including advanced age, heart disease, diabetes, hypertension, smoking, and hypercholesterolemia. Benign prostatic hyperplasia itself can also aggravate or even induce erectile dysfunction. A questionnaire study in New Jersey... 

Vascular pathology may involve lesions of the inflow or outflow mechanisms of penile erection. Erectile dysfunction may be a manifestation of generalized atherosclerosis and may even be its initial presentation. Common risk factors associated with generalized penile arterial insufficiency include hypertension, hyperlipidemia, cigarette smoking, diabetes mellitus, and pelvic irradiation (Rosen et al. 1991). Less commonly, local stenosis of the conunon penile artery may occur in men who have sustained blunt pelvic or perineal trauma (Levine et al. 1990). 

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