Now, if you’ve had any kind of anatomy lesson you know that the penis doesn’t actually have a bone in it, but that doesn’t stop nature from being terribly cruel. Despite it’s being boneless the penis can still be broken, and although it is a fairly rare occurrence it is really not something that you want happening to you.
So how does it happen? According to Dr. Lehmiller at The Psychology of Human Sexuality, it depends where you’re from (seriously). There seem to be significant cultural differences in how men break their penises. North American men tend to break them due to bashing their penises into their partners pelvic bone, having missed their prime target. Japanese men on the other hand more often break their penises solo, accidentally rolling over onto them while masturbating. Europeans break theirs most often whilst ‘kneading’ their erections in an attempt to make them go away.
What exactly happens when a penis breaks? Well, when the areas in the penis that fill up with blood to make it erect rupture due to blunt force trauma, the penis makes a popping or cracking sound. Lehmiller describes what happens next, “The erection quickly disappears and is often followed by intense pain, swelling, discoloration, and potential deformity. In severe cases, the fracture may result in urethral injury, which can produce urinary difficulties.” If left untreated it can lead to further complications and deformity. The key to breaking your penis is to go get it treated as soon as possible. The sooner you get it treated the more likely that you’ll be fully functional again. Still, as many as one quarter of people who fracture their penises complain of penile curvature and other issues with penile function.
So I guess the moral of the story is, slow and steady wins the race, if you rush in like a charging bull you might miss your mark and break your penis and that would suck.
The "Oh!" Face 