Prolactin Blood Test

Men investigating low testosterone, reduced libido, or unexplained fertility concerns — particularly where prolactin elevation may be suppressing normal hormone function rather than low T being the root cause.

Your serum prolactin level against clinical reference ranges. Elevated prolactin in men directly suppresses testosterone production and can cause symptoms that closely mimic low T — making it a critical differential marker before any hormone intervention.

Prolactin is consistently overlooked in male hormone investigations. Pathologically elevated levels — from stress, medication, or a pituitary microadenoma — suppress the HPG axis directly. Treating low T without ruling out elevated prolactin means treating the wrong thing.