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What are the first signs of puberty in boys?

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One of the first signs of puberty in boys is bigger testicles. The next thing you're likely to notice is that your penis has started to grow and get longer. It may also get hard when you touch it or rub against something. This is called an erection.

Sometimes you can get an erection when you think of something that's sexually exciting. It can also happen for no reason at all.

Your penis and testicles will continue to grow until you get to the end of puberty.

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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Why do boys smell when they go through puberty?

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