Test library
FSH Level Test
The FSH and LH test measures follicle-stimulating hormone and luteinizing hormone in the blood. These pituitary hormones regulate ovulation, the menstrual cycle, and sperm production, so the panel supports fertility and hormone evaluation.
Order FSH Blood Test
Order online and visit a local collection site, or choose an at-home kit where available. No referral and no insurance required.
Order FSH Blood Test- Typical turnaround
- 1-3 business days
- Starting price
- From $118
- Results
- Confidential, online
Quick answer
The FSH test, commonly ordered with luteinizing hormone, measures two pituitary hormones that orchestrate reproductive function. FSH helps eggs mature in women and supports sperm production in men, while LH drives ovulation and testosterone release. The pair is frequently used during fertility assessment and hormone workups.
What this test measures
Follicle-stimulating hormone is made by the pituitary gland and signals the ovaries or testes. In women it recruits and matures eggs, and in men it supports sperm production. Luteinizing hormone, released by the same gland, triggers ovulation in women and stimulates testosterone in men. The two are interpreted together.
The test requires a blood sample drawn from a vein. Cycle day can affect results in women, so providers often specify when to collect the sample. Levels also change with age and with hormonal medications. The laboratory reports each hormone with reference ranges appropriate to sex and age.
Clinicians order this panel to investigate irregular cycles, fertility difficulty, or signs of pituitary or gonadal problems. A result outside the reference range is a clue rather than a diagnosis, and it is reviewed with other hormone tests and the person's history by a qualified healthcare provider.
- Follicle-stimulating hormone (FSH)
- Luteinizing hormone (LH)
- Estradiol
- Progesterone
- Testosterone
- Prolactin
- Anti-Mullerian hormone (AMH) when included
Why people order this test
- Investigate fertility difficulty
- Evaluate irregular or absent periods
- Assess pituitary and gonadal function
- Check for signs of early or delayed puberty
- Monitor response to hormone treatment
- Follow up on abnormal reproductive hormone levels
How to prepare
No fasting is required in most cases. In women, the ordering provider may specify a particular day of the menstrual cycle for collection, so follow that timing. Share any hormone medications with the provider before testing.
Understanding your results
Results are typically available within one to three business days. FSH and LH are reported with their reference ranges. Values outside the range are interpreted alongside other hormone results and symptoms by a qualified healthcare provider.
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Frequently Asked Questions
What does the FSH blood test measure?
It measures follicle-stimulating hormone, which is often ordered together with luteinizing hormone. Both are pituitary hormones that regulate reproductive function.
Why is LH measured along with FSH?
The two hormones act together in the reproductive system, and reading them side by side gives a clearer picture of pituitary and gonadal function.
When should the test be done during the cycle?
In women, the provider may request collection on a specific cycle day because hormone levels change through the month.
Do I need to fast?
Fasting is not usually required, but follow any laboratory instructions if the test is bundled with other panels.
Can hormone medications change the result?
Yes. Birth control and other hormone treatments can affect FSH and LH levels, so inform the ordering provider about current medications.
Ready to get tested?
Order online and visit a collection site near you, or choose a mail-in kit. No referral and no insurance required.
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