According to spam email - of the issues closely connected to the psychological well-being of a male is the issue of penis size.
The length, the width or circumference of the male organ grows during puberty, from about the age of 12 till about the age of 17.
The size of the flaccid penis has little significance, as some men are showers and others are growers.
There is a very wide range of sizes of penis sizes, both length and width (circumference) and there is some correlation between various factors.
Almost half of men believe that they have a small penis. Whilst in reality, most men's penis size is (surprisingly!) average.
It is also known that men care about the size of their member more than women care about the size of the same member.