What does a normal prolactin level indicate in relation to galactorrhea?

A normal prolactin level indicates that galactorrhea, which is the spontaneous flow of milk from the breast, is likely not associated with a hormonal imbalance related to breastfeeding. In this context, normal prolactin levels suggest that the galactorrhea may not be due to physiological factors like breastfeeding or excessive lactation stimulated by elevated prolactin, as would be seen in conditions such as prolactinoma or other hyperprolactinemic states.

Thus, a normal prolactin level helps rule out these conditions, affirming that the occurrence of galactorrhea is not a direct consequence of the expected physiological response to breastfeeding. This understanding is essential for guiding further assessments and determining the appropriate clinical approach for management, as it provides clarity on whether additional hormonal evaluations or imaging studies may be warranted.