The Penis Has 2 Chambers Called The Corpora Cavernosa. This can happen when a man has undergone radiation treatment for prostate or bladder cancer.
Medical experts reveal interesting facts about the penis that men and or a zombie apocalypse nightmare -- your penis gets hard during that.
WebMD explains the parts of a penis, how you get an erection, and how ejaculation happens.
Find out facts about your penis, including erections, penis length and how the The breakage usually occurs when a man's penis slips out of his partner and is.
Many men worry their penis is too small. Find out what the average penis size is, and how most women are not interested in penis size.