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Interpret Your Prolactin Results
Enter your PRL value below and get an instant, free AI interpretation — a plain-English explanation checked against WHO/IFCC reference ranges.
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This AI-generated interpretation is for educational purposes only and does not constitute medical advice, diagnosis, or treatment. Results may vary based on individual health factors not captured here.
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Prolactin Normal Ranges
Prolactin is produced by the anterior pituitary and is the primary hormone responsible for milk production (lactation).
| Age Group | Sex | Reference Range | Unit | Notes |
|---|---|---|---|---|
| Adults (18–64) | Female | 2 – 29 | ng/mL | Non-pregnant |
| Adults (18–64) | Male | 2 – 18 | ng/mL | — |
| All ages | Female | 10 – 300 | ng/mL | Pregnancy |
Also reported in: µg/L, mIU/L.
Common Causes of High PRL
Prolactinoma (pituitary adenoma — most common pathological cause)Medications: antipsychotics (risperidone, haloperidol), metoclopramide, domperidone, SSRIs, opioidsHypothyroidism (TRH stimulates prolactin)
Common Causes of Low PRL
Pituitary failure (hypopituitarism)Medications: dopamine agonists (cabergoline)
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