There is a condition called Micropenis which occurs in 0.6% of males
Micropenis is an unusually small penis. A common criterion is a dorsal (measured on top) erect penile length of at least 2.5 standard deviations smaller than the mean human penis size, or smaller than about 7cm (3 inches) for an adult when compared to an average erection of 12.5cm (5 inches). The condition is usually […]