Which Tanner stage marks the onset of puberty changes?

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Multiple Choice

Which Tanner stage marks the onset of puberty changes?

Explanation:
The onset of puberty changes occurs at Tanner stage II. This stage marks the first visible signs of puberty: in girls, breast buds begin to develop (thelarche) and small amounts of pubic hair may appear; in boys, the first sign is testicular enlargement with changes in the scrotum, and pubic hair often starts to appear as well. Tanner stage I is prepubertal with no secondary sexual characteristics, while stages III and IV reflect more advanced development. So stage II is the point at which puberty changes first become apparent.

The onset of puberty changes occurs at Tanner stage II. This stage marks the first visible signs of puberty: in girls, breast buds begin to develop (thelarche) and small amounts of pubic hair may appear; in boys, the first sign is testicular enlargement with changes in the scrotum, and pubic hair often starts to appear as well. Tanner stage I is prepubertal with no secondary sexual characteristics, while stages III and IV reflect more advanced development. So stage II is the point at which puberty changes first become apparent.

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