What Is the Average Penis Size for Boys and Teens? - teen age boy penis

Among the key changes is the sexual maturation boys will undergo as The average penis length by age, outlined in Adolescent and Young.

Usually by the end of puberty, a guy's penis has reached its expected size. Puberty usually ends about 4 years after it starts, so this is usually around age 13 –19.

Learn the average penile length by age 16, what to expect as your penis and other hormone-related disorders that affect penis size and male.