There is no way to reduce the size of the penis if it has developed naturally. The female vagina is very stretchable, so there is no need to worry about the negative effects of a large penis on sexual life. The female vagina has another role in childbirth and the fetus needs to be produced through the birth canal, so a larger penis size will not be harmful to women. The other thing you need to pay attention to is to see if your sex hormone secretion is too much, whether there are abnormalities in the testicles, thus leading to excessive testosterone secretion, these hormones can also lead to excessive penis development, if necessary, you can go to the hospital to do some relevant tests.