Serum Testosterone Levels in 3-Month-Old Boys Predict Their Semen Quality as Young Adults.
Louise Scheutz HenriksenJørgen Holm PetersenNiels E SkakkebækNiels JørgensenHelena E VirtanenLaerke PriskornAnders JuulJorma ToppariKatharina M MainPublished in: The Journal of clinical endocrinology and metabolism (2022)
Serum testosterone in infancy was a predictor of adult total sperm count. Other reproductive hormones and genital measures showed good correlation between infancy and adulthood, suggesting that an individual's reproductive setpoint starts shortly after birth in boys and persists until adulthood.