Genetics are the main factor in determining a number of the things that make every human unique. From height through to hair color, eye color, and even the way a person’s facial features appear – all of these things are determined by our genetic makeup. For men, there is an additional factor that is decided by genetics is penis size.
Some men are well-endowed by nature. Through a combination of their genetics, they have the gift of a large penis, while other people who have small penises are often mocked, laughed at, and insulted at school. Men with smaller than average penises can lose their self-confidence, or worse, sink into depression.
For men, the size and shape of the penis are the psychological basis of masculinity. If a man has a big penis, he will take it as a signal that he is more manly than other people.