Keto Elite People with this condition are often so involved that others will contemplate their penis to be small that they don't need to get undressed round folks. Also, carrying further weight across the stomach could make the penis seem smaller. In addition, overusing a vacuum pump can injury penile tissue, which may lead to weaker erections. The authors estimated that 5 percent of men have an erect penis longer than sixteen cm. In one other 5 %, the erect penis would be shorter than around 10 cm. The average erect penis was 13.12 cm (5.sixteen in) lengthy and 11.sixty six cm (four.fifty nine cm) in girth. Penises are available all sizes and shapes, and they can differ significantly.