Physiology of erection and ejaculation 568 Erectile dysfunction: evaluation 572 Erectile dysfunction: treatment 576 Peyronie’s disease 580 Priapism 584 Retrograde ejaculation 588 Premature ejaculation 590 Other disorders of ejaculation and orgasm 592 Late-onset hypogonadism (LOH) 594 Hypogonadism and male hormone replacement therapy 596 Urethritis 600...