FSH — What It Means in Your Blood Test
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This hormone helps eggs grow in the ovaries and helps the testes make sperm.
An FSH reading shows the level of this brain messenger nudging the reproductive organs to do their work. Doctors pair it with other results to see whether the whole system is in step.
Also known as: Follicle-stimulating hormone, Follitropin, FSH
This isn't a case where higher or lower is better. Your body keeps it in a narrow band, and both directions can matter.
Last reviewed: 2026-08-16
What is FSH?
Follicle-stimulating hormone comes from the pituitary, a small gland at the base of the brain. It helps eggs mature and supports sperm production.
Why is FSH tested?
You may have this test to gauge your egg supply and fertility. It also helps check pituitary function and the move toward menopause.
What is a normal FSH range?
- India
- No India-specific national reference interval is published for this parameter; your lab's printed range is the most reliable comparison.
- Global
- Women (early follicular, day 2–3): 3.5–12.5 mIU/mL; Women (mid-cycle): 4.7–22.5 mIU/mL; Postmenopausal women: 25–135 mIU/mL; Men: 1.5–12.4 mIU/mL
Ranges vary by lab, method and equipment — the range printed on your own report is the one that applies to your result.
Source: [American Society for Reproductive Medicine, 2020]
What does your FSH value mean?
There is no widely-accepted set of value bands for this parameter. Compare your result with the reference range printed on your own report, and discuss it with your doctor.
What does a high FSH result mean?
A high result, especially on cycle day three, can suggest a smaller egg supply. It can also point to ovaries or testes that are underworking. This is worth discussing with your doctor.
What does a low FSH result mean?
A low result can go with pituitary or brain conditions that lower these signals. Your doctor can help make sense of it.
What can affect your FSH result?
- Phase of the cycle (note the cycle day for women)
- Age
- Hormones taken from an outside source, such as birth control pills
- Nutrition
- Pituitary function
Questions to ask your doctor
About this result
- What does my FSH result mean for me specifically, given my age and health?
- Is my FSH in the range that is right for me, not just the lab's general range?
What to do next
- Could anything I eat, do, or take have affected my Egg-development hormone result?
- Is there anything I should do about my FSH, or is it fine to leave as it is?
About retesting
- Does my FSH need to be repeated, and if so, when?
- The typical range for FSH can vary between labs — should I compare my result against my own lab's printed range?
The bigger picture
- Should my FSH be looked at together with my Total Testosterone and Free Testosterone result?
- Does my FSH connect to any condition I already have, or to anything I have noticed in how I feel?
Frequently asked questions
- What is FSH?
- Follicle-stimulating hormone comes from the pituitary, a small gland at the base of the brain. It helps eggs mature and supports sperm production. You may have this test to gauge your egg supply and fertility. It also helps check pituitary function and the move toward menopause.
- What is a normal Egg-development hormone range?
- A typical adult range is around Women (early follicular, day 2–3): 3.5–12.5 mIU/mL; Women (mid-cycle): 4.7–22.5 mIU/mL; Postmenopausal women: 25–135 mIU/mL; Men: 1.5–12.4 mIU/mL. No India-specific national reference interval is published for this parameter; your lab's printed range is the most reliable comparison. Ranges vary by lab, method and equipment — the range printed on your own report is the one that applies to your result.
- What does a high FSH result mean?
- A high result, especially on cycle day three, can suggest a smaller egg supply. It can also point to ovaries or testes that are underworking. This is worth discussing with your doctor.
- What does a low FSH result mean?
- A low result can go with pituitary or brain conditions that lower these signals. Your doctor can help make sense of it.
- What can affect your FSH result?
- Several everyday factors can influence it, including Phase of the cycle (note the cycle day for women), Age, Hormones taken from an outside source, such as birth control pills, Nutrition, Pituitary function.
Sources
- American Society for Reproductive Medicine (2020) — ASRM Practice Committee Opinion on ovarian reserve testing
- Endocrine Society (2016) — Clinical practice guideline on primary ovarian insufficiency
Part of the Hormones
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