Whether prolactin is "normal" depends on the individual's sex and physiological state. In general, prolactin levels are normally low in non-pregnant women and men.
Here's a more detailed breakdown:
-
Normal Prolactin Levels:
- In non-pregnant women and men, prolactin levels should be low.
-
Hyperprolactinemia (High Prolactin Levels):
- Having higher-than-normal prolactin levels is called hyperprolactinemia. This condition can affect the body in several ways.
- In Women: Hyperprolactinemia can interfere with the normal function of the ovaries, potentially leading to menstrual irregularities and infertility.
-
Prolactin and Pregnancy:
- Prolactin levels naturally increase during pregnancy to prepare the body for milk production (lactation). Elevated levels during pregnancy are, therefore, entirely normal.
In summary, prolactin is considered "normal" when levels are low in non-pregnant women and men, and when levels are elevated during pregnancy and breastfeeding. Abnormal levels, especially hyperprolactinemia outside of pregnancy, can indicate underlying health issues that require investigation.