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Endogenous Testosterone

Meaning

Endogenous Testosterone refers to the principal male sex hormone, an androgen, that is naturally synthesized and secreted within the body. Its primary production occurs in the Leydig cells of the testes, with lesser amounts generated by the adrenal glands and ovaries. This steroid hormone is essential for the development of male secondary sexual characteristics, the maintenance of muscle mass, bone density, and libido in both sexes. Monitoring endogenous levels is fundamental in diagnosing and managing hormonal health issues across the lifespan. Its production is tightly regulated by the hypothalamic-pituitary-gonadal axis.