If you have ever been concerned about your penis size, you're not alone. The size of the male sex organ has long been thought to be an indicator of a person's testosterone levels and sexual abilities.

Size matters... for science, anyway. While there have been numerous prior studies (both scholarly and unscientific) on penis size, the British Journal of Urology International (BJUI) published one of ...

This is the long and short of it. A female doctor says most people overestimate the size of the average penis, claiming most men barely measure more than five inches even when they’re rock hard. Dr.

Many people wonder what the average penis size is. The truth is that penises are like any other body part and vary in shape and size. One study found that the average penis size is about 3.9 inches (9 ...