对12例阳萎病人和5例正常人阴茎海绵体电镜观察，结果表明阳萎病人平滑肌细胞有62．79％变性，表现在基底膜显著增厚，致密体和收缩纤维缺乏，糖元减少或消失。而正常人仅19．23％有类似改变，差别有高度显著性（P＜0．01）。因此，对于准备作血管手术的阳萎病人，术前应了解海绵体平滑肌细胞的变性情况，以利更好地筛选病人。 Electron microscopy of 12 cases of impotence patients and 5 cases of normal human corpus cavernosum showed that 62.79% of the smooth muscle cells of impotence patients were denatured, showing significant thickening of the basement membrane, dense body and shrinkage of fiber deficiency, glycogen reduction or disappear. While only 19.23% of normal people have similar changes, the difference is highly significant (P <0.01). Therefore, for the preparation for vascular impotence patients, preoperative understanding of the degeneration of sponge smooth muscle cells in order to facilitate better screening of patients.