Hello,
A curved penis can be present at birth or result from a traumatic injury. 15-20 degree bent is absolutely normal for a penis. Nothing has to be done. Every penis is bit bent and a slight bend is normal.
But if however if your penis is bent to the left or right so much as to make it difficult or even painful to enter your partner during sex then pyrenoie disease has to be ruled out.
I hope it helps. Take care and regards.
I've rarely seen a straight Penis.
My father, however, has just has surgery on his because of Peyronies Disease, with brilliant results. He also has the scar tissue forming in his palms, associated with the disease.
He seems to think 'natural' curve of the penis depends on whether you are right or left handed, lol.
Like I said before, I've rarely seen a straight one, so I wouldnt worry.
;)