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Asked by Al Leuschke
Male Puberty
Human Anatomy and Physiology

Why do boys' voices crack during puberty?

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Winston Stehr
December 11, 2019 8:24PM

A child has a small larynx and thin vocal cords, which creates a higher pitched voice. When boys hit puberty, they have an increase in testosterone, which causes a lengthening of the larynx and a thickening of the vocal cords. And as children grow, the cavities in their noses and throats enlarge, allowing more space for sound to resonate. All these changes combined result in a lowered voice.

The whole process takes place gradually, but when there is a period of rapid growth, the muscles involved can struggle to properly control the vocal cords. This causes some boys to experience a “crack” or “squeak” in their voices from time to time. It’s completely normal and usually only lasts a few months.

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joe hansan
December 26, 2019 11:00AM
these happens because of the puberty Epson Printer Error Code 0x97-
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Wiki User
May 14, 2011 12:45PM

'Cause when in puberty your men's/boy's voices are changed, so that they have to learn to use those new voices, making them use wrong tones once in a while.