Test library
FSH LH Level Test
This hormone panel measures follicle-stimulating hormone and luteinizing hormone, which together regulate the menstrual cycle, egg release, and sperm production. It helps evaluate fertility, puberty, and pituitary function.
Order FSH Level Test Follicle-Stimulating Hormone
Order online and visit a local collection site, or choose an at-home kit where available. No referral and no insurance required.
Order FSH Level Test Follicle-Stimulating Hormone- Typical turnaround
- 1-3 business days
- Starting price
- From $49
- Results
- Confidential, online
Quick answer
The FSH and LH test measures two hormones produced by the pituitary gland: follicle-stimulating hormone and luteinizing hormone. In women they drive the menstrual cycle and egg development; in men they support sperm production and testosterone regulation. The panel is commonly ordered during fertility evaluation and for other hormone concerns.
What this test measures
Follicle-stimulating hormone and luteinizing hormone are released by the pituitary gland and act on the ovaries and testes. FSH stimulates egg maturation in women and sperm production in men, while LH triggers ovulation in women and testosterone production in men. Measuring both gives a broader view of reproductive and pituitary function.
The test uses a blood sample, and the timing matters. In women, clinicians may request collection on a specific day of the menstrual cycle because levels change through the month. In men, timing is less critical. Laboratories report each hormone against age and sex-specific reference ranges.
This panel is often ordered when evaluating infertility, irregular periods, signs of early or delayed puberty, or suspected pituitary problems. It may also be used to monitor hormone treatment. A qualified healthcare provider interprets the results with the person's history and other hormone tests.
- Follicle-stimulating hormone (FSH)
- Luteinizing hormone (LH)
- Estradiol
- Progesterone
- Testosterone
- Prolactin
- Thyroid-stimulating hormone (TSH)
- Anti-Mullerian hormone (AMH) when included
Why people order this test
- Evaluate fertility concerns in women or men
- Investigate irregular or absent menstrual periods
- Assess signs of early or delayed puberty
- Check pituitary function
- Monitor hormone treatment or fertility care
- Follow up on an abnormal reproductive hormone result
How to prepare
No fasting is usually required. In women, the laboratory may ask for the sample on a specific day of the menstrual cycle, so follow the timing instructions provided with the order. Tell the ordering provider about current hormone medications.
Understanding your results
Results are generally available within one to three business days. The report shows FSH and LH values with reference ranges for age and sex. Abnormal levels are interpreted with other hormone tests and the clinical picture by a qualified healthcare provider.
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Frequently Asked Questions
What do FSH and LH do?
They are pituitary hormones that control reproductive function. FSH supports egg maturation in women and sperm production in men, while LH triggers ovulation in women and testosterone production in men.
When should the sample be collected?
In women, timing within the menstrual cycle matters, and the laboratory may request a specific day. In men, collection timing is usually less critical.
Do I need to fast before this test?
Fasting is not usually required. Follow any instructions provided by the laboratory, particularly if other tests are included.
Can this panel diagnose infertility?
No. It provides information about hormone signaling that a healthcare provider uses with other tests and findings to evaluate fertility.
Can birth control affect the results?
Yes. Hormonal medications can change FSH and LH levels, so sharing a current medication list with the ordering provider supports accurate interpretation.
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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