A stubborn bottom.

No, it's not genetics. It's gravity. It's well known that the astronauts' cocks in space don't curve at all.

Screwing around corners!

Nowt wrong with a curved penis
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my observations show me, if you are right handed, you hang left, left handed, you hang right

People with this condition have a certain type of immune cell marker, which indicates that it may be inherited.

It's the combination of gravity with magnetic **** produced by the gyrating sperm. The more the sperm cycles the higher the **** and hence the higher the curvature.
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**** = f o r c e

Seriously folks--you make me feel like I am wasting my time trying to keep you informed on this stuff.

/forum/thread.php?id=25981

Peyronies is a medical condition in which scaring in an area of the penis shaft causes the penis to curve!

mine bends to the left. i am right handed and have jerked off MANY times. pretty sure its due to that.

Interesting....

I did used to think that curvature was due to 'damage' that got inflicted when one was young by underwear or by urinating with your penis pulled out of the leg of your underpants etc. However, now i'm not so sure.

There are of course, different types of curve. Those to left or right are probably just another instance of how non-symetric most peoples bodies are. It is well known and documented that the vast majority of people have odd sided faces for example,..in fact some people have completely assymetric faces where either side could have come from different folks! Lots of people have a 'defect' one side,..a shorter leg or hip difference that makes their clothes have to be altered,..NOT an actual deformaty,..just a difference.

The penis is actually quite suscetiple to this 'non-symetrical' difference as it is constructed of two main cylinders (there is a third underneath that carries teh tubing and is connected to the glans),..left and right, that contain the spongy cells which fill with blood to erect the shaft. These are called the Carnavosa and ANY difference between one and the other will effectively give a different erection from one side to the other. Also, if one side is able to fill larger than the other side then a 'bend' MUST happen because the shorter side will pull the longer side into a curve.

An up-curve seems to be very common and is probably due to riginal race/tribal genetics. I read a book some time back which purported to show three main types of penis shape. however, one of these was a 'bottle' shape which it claimed went back to the Vikings (funny how all the weird genetic stuff is always the fault of the Vikings!)...however, after looking at this site for a couple of years I don't remember ever seeing one here....