Even in reputable studies, the statistical average varies, US median is about 5.5 inch according to the biggest study (1661 sexually active men) we could find by the well known Journal of Sexual Medicine. Most men have an erect size between 5 and 6 inch, so below 5 inch can be considered small. This data matches my own long term experiences as an andrologist. Don’t be fooled by the penis sizes you often see in adult movies, all actors are selected individuals far above the average size. These movies certainly don’t depict any statistical average and also use visual tricks to make the manhood of the male actors appear even larger. Nevertheless, many men ask themselves how to get a bigger penis the natural way, without any unnecessary risks and dangers.
Stretching with weights. Weights or stretching exercises won't bulk up your penis -- it's not a muscle. But hanging weights off your flaccid penis may stretch it a bit, O'Leary says. The catch is that it requires a freakish degree of dedication. "You might have to wear a weight strapped to your penis eight hours a day for six months," says O'Leary. At the end of it, you could be lucky enough to gain about half an inch. Risks include tearing of the tissue, burst blood vessels, and other problems.