Hyperprolactinemia

By RRM Academy Reviewed by Dr. Naomi Whittaker, MD, Board-Certified OBGYN, MIGS, NFPMC, FCI Updated May 13, 2026

Hyperprolactinemia is an elevated serum prolactin level that suppresses pulsatile GnRH secretion, reducing LH and FSH and disrupting ovulation. The result is anovulatory cycles, shortened or absent luteal phases, and impaired fertility. Galactorrhea (spontaneous nipple discharge) may accompany elevated prolactin but is not always present.¹

Common causes include pituitary microadenoma (prolactinoma), hypothyroidism, and certain medications (antipsychotics, metoclopramide, some antihypertensives). Physiologic causes include pregnancy and breastfeeding. Identifying the cause matters: hypothyroidism-driven hyperprolactinemia resolves with thyroid treatment. Medication-induced elevation resolves when the offending drug is discontinued. Prolactinoma is treated with dopamine agonists under appropriate clinical supervision.²

In RRM, hyperprolactinemia is screened in all infertility evaluations. Elevated prolactin is not dismissed as a minor finding. It is a documented cause of luteal phase deficiency and infertility that responds to targeted treatment. The RRM approach identifies the underlying cause and addresses it directly rather than bypassing the disrupted hormonal axis.¹

This content is for educational purposes only and does not constitute medical advice. Consult an RRM clinician or healthcare provider for guidance specific to your situation.