Primary Hypogonadism and Prolactinoma Risk: 28-Year US Male Cohort Study
Reading Time: < 1 minute Introduction Primary hypogonadism, characterized by deficient testosterone biosynthesis due to testicular dysfunction, affects approximately 2-4% of American males over age 40, with rising prevalence linked to aging, obesity, and environmental toxins. This condition manifests as low serum testosterone (10 IU/L, LH >8 IU/L), and symptoms including fatigue, erectile dysfunction, and reduced muscle mass. Emerging evidence suggests bidirectional interactions between the hypothalamic-pituitary-gonadal (HPG) axis and the lactotroph cells of the anterior pituitary, which secrete prolactin (PRL). Hyperprolactinemia (>20 ng/mL in men) disrupts gonadal function via dopamine inhibition and GnRH suppression, but the converse—whether primary hypogonadism precipitates PRL dysregulation—remains underexplored. Prolactinomas, benign...


