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Healthy Children Ages & Stages Gradeschool Puberty Boys' Secondary Sex Characteristics
Healthy Children Ages & Stages Gradeschool Puberty Boys' Secondary Sex CharacteristicsBoys' Secondary Sex Characteristics
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Boys' Secondary Sex Characteristics |
Usual Age Range |
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The testicles begin to enlarge, and the scrotum turns darker and coarser |
10 to 13 |
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Pubic hair begins to grow |
10 to 15 |
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The body grows taller and heavier |
10 to 16 |
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The penis begins to grow longer and fuller |
11 to 15 |
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The voice begins to deepen |
11 to 15 |
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Boys become fertile, meaning they are capable of ejaculating semen |
11 to 17 |
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Hair begins to grow under the arms and on the face |
12 to 17 |
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Glands in the skin and scalp begin to produce more oil, which can cause skin blemishes |
12 to 17 |
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