Of the ten men with hormone abnormalities, one was found to have mild hyperprolactinemia with a prolactin of 24.7 ng/mL and a negative pituitary magnetic resonance imaging (MRI), one was found to have an elevated FSH of 25 IU/mL, and eight of whom were found to be hypogonadal with a mean serum total testosterone level of 211.9 ng/dL (SD 60.3). This evidence concerns the gene PRL and hyperprolactinemia.