Inhibin B

INHIBIN B Test

The Inhibin B test measures the level of Inhibin B, a reproductive hormone produced primarily by developing ovarian follicles in women and by Sertoli cells in the testes in men.

In women, inhibin B is associated with the activity of developing ovarian follicles and may provide information about ovarian reserve and follicular function. It can sometimes be used alongside other fertility-related tests, such as AMH and FSH, when evaluating reproductive health.

In men, inhibin B is produced by Sertoli cells and is associated with sperm production. Measuring inhibin B may therefore provide additional information when investigating certain causes of male infertility or impaired testicular function.

The result should be interpreted according to age, sex, menstrual-cycle timing, reproductive status, symptoms, and other hormone or fertility test results.

This Test is Recommended for Individuals:

• Women undergoing evaluation of ovarian reserve or reproductive function
• Individuals undergoing a fertility assessment
• Women being evaluated alongside other ovarian reserve markers such as AMH and FSH
• Men undergoing evaluation for male infertility or impaired sperm production
• Men with suspected testicular or Sertoli cell dysfunction
• Individuals requiring additional hormonal assessment as advised by a healthcare professional

FAQs

1. What is the Inhibin B test used for?
The Inhibin B test measures the level of inhibin B in the blood. It can provide information about follicular activity in women and Sertoli cell function and sperm production in men.

2. What does low Inhibin B indicate?
Low Inhibin B may be associated with reduced ovarian follicular activity in women or impaired sperm-producing function in men. However, the significance depends on age, sex, reproductive status, and other test results.

3. Is Inhibin B the same as AMH?
No. Inhibin B and AMH are different hormones, although both can provide information about reproductive function. AMH is generally more widely used for assessing ovarian reserve, while inhibin B may provide additional information in selected fertility evaluations.