26例阳萎患者,平均年龄53岁。全部患者阴茎勃起无能或不能维持勃起均在3个月以上而无法进行有效的性生活。于前一天晚上估计阴茎的长度后,将2%硝酸甘油膏涂于整个阴茎体部。结果发现,使用安慰剂膏后,26例中的22例患者阴茎体增长(平均改变7.34±1.54 mm,其超过基础值),这可能系视觉和触觉刺激所致。与安慰剂膏相比,使用硝酸甘油膏的26例患者中,25例阴茎增长的数值更大(9.21±1.40 mm,其超过基础值,比安慰剂大75.9±19.9%)。与安慰剂相比,使用硝酸甘油膏后阴茎增长的例数 26 cases of impotence patients, mean age 53 years. All patients with penile erectile incompetence or can not maintain erection are more than 3 months and can not be effective sex life. After the length of the penis was estimated the night before, 2% nitroglycerin was applied to the entire penis. The results showed that with placebo cream, 22 of 26 patients had penile growth (mean change 7.34 ± 1.54 mm, which exceeded the basal value), which may be due to visual and tactile stimuli. Of the 26 patients using nitroglycerin, 25 had greater penile growth (9.21 ± 1.40 mm, which exceeded the baseline value by 75.9 ± 19.9% ​​over placebo) compared with placebo. The number of cases of penile growth after administration of nitroglycerin compared to placebo