Hormones
Prolactin
Extended panel — run periodically
What it indicates
A pituitary hormone with roles in reproductive and breast tissue.
Why a series helps
Prolactin responds to sleep, stress and time of day, which makes repeat readings considerably more stable than one.
What this page does not tell you
What a particular Prolactin result means depends on you: your history, your medication, why the test was taken. Ziro does not interpret results for individuals and does not diagnose. If something in your results warrants a conversation, that conversation is with a doctor, and your results are downloadable so you can bring them.
Others in hormones
Chemical messengers that vary across the day, the month and the decades.