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What causes puberty to begin?

Puberty begins when luteinizing hormone (LH) is produced in the pituitary gland and released in pulses, especially at night. This takes place approximately three years prior to the physical development of secondary sex characteristics, such as hair, breast, and penis growth. LH interacts with other hormones such as testosterone and estrogen to cause the development of these secondary sex characteristics.

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Important: This content reflects information from various individuals and organizations and may offer alternative or opposing points of view. It should not be used for medical advice, diagnosis or treatment. As always, you should consult with your healthcare provider about your specific health needs.