Test guide
Follicle-Stimulating Hormone (FSH) Levels Test
This test measures the level of follicle-stimulating hormone (FSH) in a sample of your blood. A hormone is a chemical messenger in your bloodstream that controls the actions of certain cells or organs. FSH plays an important role in sexual development in children and fertility in adults.
What it is for
FSH testing is used to help diagnose conditions that cause too much or too little FSH. The specific way the test is used depends on your sex and age. In women , an FSH test may be used to: Source: MedlinePlus, National Library of Medicine. Medical test information is public domain. Source identity and definition checked automatically on 2026-10-18. No individual clinical interpretation or human reviewer is asserted.
Limitations
Reference intervals and interpretation depend on the laboratory, specimen, method and clinical context. This source definition is educational information; it does not establish a diagnosis, product approval or suitability for an individual.
Also known as
- follitropin, FSH, follicle-stimulating hormone: serum, pituitary gonadotropins
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