sex hormones
Follicle Stimulating Hormone
Explore Follicle Stimulating Hormone and the mIU/mL unit used to report it.
- Short name
- FSH
- Unit
- mIU/mL
- Reference min
- 1.5
- Reference max
- 15
- Optimal min
- 3
- Optimal max
- 10
- Better when
- in range
- Reference min (male)
- 1.5
- Reference max (male)
- 12
- Reference min (female)
- 3
- Reference max (female)
- 20
- Sample
- serum
- Fasting required
- false
- Related markers
- Luteinizing Hormone, Estradiol, Total Testosterone
Moved by
Interventions that trials measured against this marker, and which way it moved.No trial has measured Follicle Stimulating Hormone against an intervention in this library yet.
Full write-up
What is it
Follicle Stimulating Hormone (FSH) is a hormone-related biomarker in the sex hormones category. It identifies the specific hormone being assessed, while the reported result expresses the measured level in the stated unit.
How to test it
Follicle Stimulating Hormone is measured from a serum sample, meaning the test requires a blood sample from which the serum is analyzed. Fasting is not required for this measurement, so food restriction is not part of the stated preparation for arranging the test.
Results are interpreted using the reference information shown with the test. The relevant comparison can depend on whether the male or female reference range applies, while the optimal range is a narrower interpretive range rather than a separate sample requirement. Because the result is a hormone measurement, interpretation may also be considered alongside related markers such as Lh, Estradiol, and Testosterone Total when those tests are part of the same clinical assessment. A clinician can advise on which comparisons are appropriate for the individual and the reason for testing.
Reading your result
Read a Follicle Stimulating Hormone result against the reference range printed on the same laboratory report. Laboratories can use different ranges and units, so a number should not be interpreted by comparing it with a range from another report. The sample type and collection requirements also matter when reviewing how the result was obtained.
The optimal range is narrower than the reference range. A result within the reference range may therefore fall outside the tighter optimal range without automatically indicating a medical problem. Some ranges may also differ according to sex, so the applicable range on the report is important.
A single Follicle Stimulating Hormone value is not a diagnosis. Results outside the report’s reference range should be discussed with a clinician, who can interpret them in the context of the person, the testing circumstances, and any other relevant findings.
What moves it
For Follicle Stimulating Hormone, directly measured studies found movement in both directions, as well as no clear change. Ashwagandha and Evening Primrose Oil were associated with decreases, while Tribulus Terrestris and Milk Thistle (Silymarin) were associated with increases. Because this marker has an optimal range rather than a universally preferred high or low value, the meaning of either direction depends on the starting result and clinical context.
Coenzyme Q10 produced conflicting findings, so its effect on Follicle Stimulating Hormone is not consistent across the directly measured studies. Vitamin E, Berberine, Resveratrol, Omega-3, Alpha-Lipoic Acid (ALA), Curcumin, Melatonin, Maca Root, Astaxanthin, and Inositol did not show a significant change in the available direct measurements.
Across these studies, Follicle Stimulating Hormone was generally reassessed after about 8 to 26.1 weeks. The findings describe changes observed under specific study conditions and do not establish that an intervention will move an individual result into the optimal range. Interpretation is especially important when a result is being evaluated for a medical condition, so clinical context should be considered with a qualified clinician.