What is a normal prolactin level?
The short answer
A typical US lab prints a normal prolactin range for your sex: 4.8–23.3 ng/mL for women, 4–15.2 ng/mL for men. That range exists to catch disease, not to describe your best.
Nobody we follow has said what your prolactin should be. It comes up on the shows, but never with a number.
What prolactin measures
A pituitary hormone best known for driving milk production.
Outside pregnancy, a high level suppresses the other sex hormones. That puts it on the list in fertility and cycle problems.
Checked against MedlinePlus — Prolactin Levels.
Common questions
What is a normal prolactin level?
Most US labs print 4.8–23.3 ng/mL. Your report grades you against that range. It exists to catch disease, not to describe your best. Labs print different ranges by sex: about 4.8–23.3 ng/mL for women and 4–15.2 for men.
What does your prolactin number mean?
On a typical lab range, under 4.8 ng/mL is low, 4.8 to 23.3 is normal and over 23.3 is high. Your own report prints its range next to your number, and that is the one your lab uses. Nobody we follow has drawn a line inside that range. Labs print different ranges by sex: about 4.8–23.3 ng/mL for women and 4–15.2 for men.
What does the prolactin test measure?
A pituitary hormone best known for driving milk production. Outside pregnancy, a high level suppresses the other sex hormones. That puts it on the list in fertility and cycle problems.
Why is there no target here?
Because nobody we follow has named a number for prolactin. If that changes, it will be here.