The male pelvic floor muscles support the abdominal contents, are active during breathing, maintain urinary and faecal continence, increase local blood supply and are active during sexual intercourse. It was hypothesized that weak pelvic floor muscles would compromise these functions in men and lead to urinary and faecal incontinence and sexual dysfunction and that pelvic floor muscle strengthening would restore normal function. After a literature search of randomized controlled trials was undertaken, it was found that weak pelvic floor muscles compromised normal pelvic floor function and led to urinary incontinence and erectile dysfunction. Strengthening the pelvic floor muscles was shown to significantly improve post-prostatectomy urinary continence, post-micturition dribble and erectile function. It would be prudent for all men to exercise their pelvic floor muscles to maintain normal pelvic floor function.