What is the first sign of male puberty?

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Multiple Choice

What is the first sign of male puberty?

Explanation:
The first sign of male puberty is testicular enlargement. This reflects gonadarche, when the testes are activated by rising gonadotropins to produce testosterone. The increase in testicular size marks the beginning of puberty, as the testes grow due to development of the seminiferous tubules and supporting cells. As testosterone levels continue to rise, secondary sexual characteristics appear in a typical sequence—pubic hair development, penile growth, and then changes like deepening of the voice and facial hair. So, the earliest, most consistent physical change is the testes getting larger, making testicular enlargement the best answer.

The first sign of male puberty is testicular enlargement. This reflects gonadarche, when the testes are activated by rising gonadotropins to produce testosterone. The increase in testicular size marks the beginning of puberty, as the testes grow due to development of the seminiferous tubules and supporting cells. As testosterone levels continue to rise, secondary sexual characteristics appear in a typical sequence—pubic hair development, penile growth, and then changes like deepening of the voice and facial hair. So, the earliest, most consistent physical change is the testes getting larger, making testicular enlargement the best answer.

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