Erectile Dysfunction (ED):
Erectile dysfunction (ED) is the inability to attain or sustain an erection satisfactory for sexual intercourse. Most erectile dysfunction is related to vascular, neurologic, psychologic, and hormonal disorders; drug use can also be a cause. Evaluation typically includes screening for underlying disorders and measuring testosterone levels.
The term impotence has been replaced by the term erectile dysfunction. In Asian At least 10 to 20 million men > 18 are affected. The prevalence of partial or complete ED is about 50% in men 40 to 70 and increases with aging. However, many men can be successfully treated.
Premature Ejaculation (PE):
Ejaculation and orgasm:
Ejaculation is controlled by the sympathetic nervous system. Adrenergic stimulation causes contractions of the epididymis, vas deferens, prostate, and muscles of the pelvic floor. In addition, the neck of the bladder closes, preventing retrograde ejaculation of semen into the bladder.