Low levels of testosterone are related to increased levels of prolactin. Prolactin levels need to be suppressed for the patient to achieve better sexual function. Bromocryptine monotherapy is the first line of treatment in this case. The pituitary mass found on brain MRI is a microadenoma, and no surgical intervention or radiation therapy is necessary. Testosterone replacement therapy would be considered at a later stage and only if the testosterone levels are low after prolactin levels normalize.