This is an important test that measures the level of macroprolactin in the blood.

Venous blood
1 tests included
7 days turnaround



About Macroprolactin

What is macroprolactin?

Prolactin is a hormone responsible for stimulating the production of breast milk in pregnant or breastfeeding women. Macroprolactin is an inert form of prolactin which is bound to antibody IgG. Elevated prolactin in individuals (male or female) who are not pregnant, or breastfeeding can cause a variety of symptoms including breast milk production, low testosterone and infertility.

If experiencing these symptoms, a prolactin test will be performed alongside this macroprolactin test. This is because macroprolactin will show up as prolactin in a prolactin test but has no biological activity, potentially resulting in a false elevated prolactin level.

Why take the test? This test measures the level of macroprolactin in the blood. It is used in conjunction with a prolactin test to measure prolactin levels.


What's tested


How it works



Purchase your Kit

Just order a test online and get your kit delivered right to your door unless you are ordering a COVID-19 Fit to Fly test where you will be given appointment options to attend our clinics across the United Kingdom for a nose and throat swab PCR test at the checkout stage.



Take your test and post

Follow our simple instructions to take your sample and post back the enclosed prepaid envelope to our accredited lab for processing. We also offer home or workplace visits by a qualified nurse. For COVID-19 Fit to Fly tests you must attend one of our partner clinics for our trained collection officers to take your sample. You will then have the results emailed to you.



Get results directly to your dashboard

You will receive an email notification from our medical team when your results are available on your secure personalised health dashboard.