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What happens during puberty?

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Puberty happen in boys happen over several years. Here are some of the changes you can expect -- and the average age when they happen.

But remember, these are just average ages. The exact schedule you follow may be different than it is for other boys you know.

  • Testicles start to grow, usually between the ages of 11 and 12.
  • Pubic hair -- the hair around your penis and testicles -- often starts to appear when a boy is 12.
  • The penis starts to grow in size often around age of 13.
  • Also around age13, you may notice a temporary growth in the size of your breasts.
  • A boy's voice starts "cracking" around the age of 13.
  • You may have a growth spurt at about 13 1/2.
  • When you're 14, you may notice hair growing in your armpits.
  • Also at age 14, boys often start having wet dreams. That's when semen comes out of your penis while you sleep.
  • The average age a boy gets his adult voice is 15.
  • At 15, you may notice you're getting a mustache.
  • By age 16, you may notice your beard has started to grow.

From: Guys' FAQ About Puberty WebMD Medical Reference

SOURCES:

FamilyDoctor.Org: "Puberty: What to Expect When Your Child Goes Through Puberty."

HealthyChildren.org: "What's Happening to My Body?" "Physical Development of School Age Children."

Child Growth Foundation: "Puberty and Tanner Stages."

KidsHealth.org: "Causes of Precocious Puberty."

HealthyChildren.org: "Stages of Puberty."

Massachusetts General Hospital for Children: "Puberty."

Reviewed by Dan Brennan on October 16, 2019

SOURCES:

FamilyDoctor.Org: "Puberty: What to Expect When Your Child Goes Through Puberty."

HealthyChildren.org: "What's Happening to My Body?" "Physical Development of School Age Children."

Child Growth Foundation: "Puberty and Tanner Stages."

KidsHealth.org: "Causes of Precocious Puberty."

HealthyChildren.org: "Stages of Puberty."

Massachusetts General Hospital for Children: "Puberty."

Reviewed by Dan Brennan on October 16, 2019

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What are the first signs of puberty in boys?

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