What is this test?
Inhibin B is a hormone produced in the ovaries and testes that is involved in the regulation of FSH and reflects part of reproductive function.
Why might it be ordered?
- In specialized evaluation of ovarian or testicular function and fertility.
- For puberty disorders or to monitor certain conditions when prescribed.
What sample is needed?
A healthcare professional collects a venous blood sample. Depending on the method, the laboratory uses serum or plasma.
How should you prepare?
For women, the day of the cycle may matter. Follow the requested collection schedule and report any hormone treatment. Tell the laboratory about all medicines, hormone treatments, vitamins and supplements you take. Do not stop or change treatment unless your clinician tells you to. Follow any instructions about fasting and the time of collection.
How should you understand the result?
The result is interpreted with age, sex, FSH, AMH, semen analysis or other relevant tests. Your result is interpreted using the reference interval on the laboratory report and in the context of your symptoms, medical history and other test findings.
Sources and editorial status
This patient-facing text is an editorial draft. It should be approved by a laboratory physician before official publication.