ClarilabHormones
Prolactin test
The hormone that makes breast milk.
- Typical range
- Women about 5–25 ng/mL (higher in pregnancy).
- Preparation
- Morning sample, rested.
- Usual recheck
- About 3 months when out of range
Why it's done
Checked for irregular periods, trouble conceiving, milky discharge or headaches.
What a high result can mean
Stress, some medicines, an underactive thyroid, or a small benign pituitary growth.
Got a report with Prolactin?
Upload the PDF to Clarilab: it reads the values in your browser, flags anything out of range and tracks your results over time.