Secrets, pride, discusses and parables of male sexuality and reproductive organ size, all these started in the old primitive clans whose traditions traced all kind of customs to people and men with big genital endowments were considered to have more virility and power, a higher capacity of perpetuating the species and they were said to be more valuable to the other sex.

A study in Holland on a sample of 400 women made public that 80% of them considered the penis length to be very important and 60% considered the thickness valuable.  Quality and size relies on the anatomical sex of the partners, which relies on the breed and lots of other factors, not just the size of the male reproductive organ so focus on that when you're learning how to enlarge penis by exercise PC.

Requirement or personal pride?  First - there have been several divergences in the penis size when in flaccid state than in the state of erection.  There's a difference of perception of size in this respect : a mean penis size in flaccid state will increase in size more than one that is sized below average. 

If you insist to grasp how to enlarge penis by exercise PC, you can try it, but you still must know the size will not satisfy desires.  In some men, measurements will prove otherwise.  You may have a psychological problem, and not a physical one. 

As general structure, the penis is composed of 2 chambers called Corpora Cavernosa and Corpus Spongisum.  Corpora Cavernosa is the main room which maintains blood in the penis ( ninety percent of blood ).  During erection this rooms is flooded with blood and so the penis becomes firm, making intercourse possible.  Also, you should not confuse the swelling or the irritation with the results of the techniques of how to enlarge penis by exercise PC.