The theory behind Penis Pumping is to increase the blood holding capacity of the Corpus Cavernosa by using a vacuum device (Penis Pump) to decrease the atmospheric pressure around it. The expansion of the penile tissues is mostly in accordance with the amount of vacuum generated. The forces generated are created by the differences in atmospheric pressure. Normal atmospheric pressure (14.7psi at sea level) outside the cylinder and near the point of contact (your pubic bone area) will force blood to rush in to satisfy the differences between that pressure and the one inside the cylinder.
While under vacuum pressure more blood can enter the Corpus Cavernosa than normal and lymphatic fluids are drawn into other distensible areas of the penis. In fact, the penis can expand well beyond the normal erect dimensions thereby creating the proper conditions to stimulate growth. Eventually, with repeated sessions, these cellular tissues under the forces of expansion will gradually adapt to more stress as your workouts continue to progress and this should result in permanent gains over time.
These vacuum devices were originally designed and manufactured for those individuals who suffer from erectile dysfunction or impotence. Over the years the device has acquired critics that claim that the devices merely aid in getting an erection and serve only their original purpose, i.e., not intended to produce long term gains or growth. Penis enlargement is a relatively new and developing science and much of the latest advances and cutting edge techniques that exist today stem from the exchange of experiences and ideas such as the ones by the members of this forum.
The medical community has not really shown interest in this field for obvious reasons (among others) that we will not cover in the scope of this article. However, we believe we do not necessarily need to have medical community endorsements to know that we learn on our own can work. The experiences of many members combined can serve as an informal scientific inquiry as we forge ahead into this relatively unexplored field.
