A boy's private parts typically start growing during puberty, which can begin anywhere between the ages of 9 and 15.
The onset of puberty varies significantly from boy to boy. Some boys may experience the first signs of puberty, including the growth of their penis and testicles, as early as age 9. Others may not start until they are 15. This wide range is perfectly normal. The most significant growth typically occurs throughout the duration of puberty. There are no special exercises, supplements, or diets that will impact the size of one's penis.
Factors such as genetics, overall health, and nutrition can influence when puberty begins. If a boy is concerned about his development, consulting a doctor is always a good idea.
