There is a muscle group sitting at the base of your torso that controls your bladder, supports your spine, influences the quality of your erections, and plays a direct role in how sex feels — and the odds are extremely good that you have never once trained it on purpose.

For many men visiting GenitalSize.com, the primary concern is a static number on a ruler. However, from a clinical and physiological perspective, "size" is not just a genetic set point; it is a functional platform.