Your penis is divided into three chambers, two larger ones in the upper section  — called erectile tissue (corpora cavernosa) — and a smaller one located at the base of the penis, through which you urinate and ejaculate (corpus spongiosum).

When sexual maturity is reached, the brain releases a hormone that sends blood to the penis, which causes the erectile tissues to fill with blood. The blood expands through the corpora cavernosa and an erection occurs.

When using a Bathmate pump, the water around the penis has a negative pressure that creates a uniform suction force around the entire penis. This produces a flow of oxygenated blood to the cavity of the penis and it grows.

With the correct use of the pump, more and more oxygenated blood will reach the spongy chambers of the penis, generating more cells to accommodate more blood in the penis. By increasing the capacity to lodge more blood in the tissues, the penis will increase in size.

First, you will increase the thickness and girth of your penis followed by the length. Even in flaccid state it will be bigger. In general, after 1 to 3 months, the length will begin to increase. The more constant you are in the use of the Bathmate pump, the thicker and longer your penis will be. A 15-minute session is recommended 3 to 5 days a week.

The increase in size is observed in both erect and flaccid state. Furthermore, men whose size in flaccid state is smaller will see quicker and more significant results. You will start seeing results from the first session.

Just like with the weight training, if you go to the gym once a week you will not notice the same results as if you go 3 or 4 times a week, in which case you will then begin to see significant changes.