BPH occurs when a man's prostate gland becomes enlarged and this is primarily due to sexual aging. The prostate gland plays a pivotal role in sperm production and as men age, the requirement for this becomes less.
In addition to the sexual function, the prostate also plays a valuable role in carrying urine from the bladder through to the penis. The result of sexual aging is that the prostate gland becomes enlarged and not only presses on the bladder but also on the pelvic floor muscles narrowing the tube that runs through it for a man to be able to urinate. Zara Hayat video.