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How do testosterone levels change during puberty?

During puberty, testosterone levels undergo significant changes. In males, the hypothalamus-pituitary-gonadal axis becomes more active, leading to increased production of luteinizing hormone (LH) and follicle-stimulating hormone (FSH) from the pituitary gland. These hormones stimulate the testes to produce higher levels of testosterone. This surge in testosterone is responsible for the development of secondary sexual characteristics such as facial and body hair growth, deepening of the voice, and muscle development. The increase in testosterone also drives the growth and maturation of the male reproductive organs, including the testes and prostate.


  1. Diver, M. J., Imtiaz, K. E., Ahmad, A. M., Vora, J. P., & Fraser, W. D. (2003). Diurnal rhythms of serum total, free and bioavailable testosterone and of SHBG in middle-aged men compared with those in young men. Clinical Endocrinology, 58(6), 710-717. doi: 10.1046/j.1365-2265.2003.01752.x

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