The main reason is that in Europe and the United States, circumcision is performed at the age of 4. If the foreskin is too long, it will affect the development. So their penis growth is not hindered and of course it grows faster. Another issue is exercise. Some people have a part of their penis that shrinks in their abdomen if they don’t exercise. . . It is recommended to exercise more. This thing does not need to be too long, it mainly depends on time. . . .