Leydig cells, located in the interstitial tissue of the testes, are responsible for testosterone synthesis. Testosterone production is regulated primarily by luteinizing hormone and is critical for spermatogenesis, sexual function, and secondary male characteristics.
Disruption of Leydig cell activity results in reduced testosterone availability, affecting not only reproductive health but also systemic physiology, including muscle mass, bone density, erotic and metabolic regulation.
Age-related decline, metabolic disease, inflammation, and certain medications can impair Leydig cell function. Andrological assessment must therefore evaluate both hormone levels and underlying cellular mechanisms to ensure accurate diagnosis and safe treatment planning.
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