An FSH (Follicle Stimulating Hormone) test measures this pituitary hormone that plays a central role in reproduction. In women, FSH stimulates egg development in the ovaries. In men, it stimulates sperm production.
What This Test Measures
Follicle Stimulating Hormone (FSH):
A hormone released by the pituitary gland that signals the gonads to produce eggs (women) or sperm (men). FSH levels provide insight into reproductive function and ovarian/testicular reserve.
Reference Ranges
Women:
• Follicular phase: 3.0-8.1 IU/L
• Mid-cycle peak: 2.6-16.7 IU/L
• Luteal phase: 1.4-5.5 IU/L
• Postmenopausal: 26.7-133.4 IU/L
Men: 1.3-11.0 IU/L
Who Should Consider This Test
Women:
• Fertility evaluation
• Irregular or absent menstrual periods
• Evaluating menopause or perimenopause
• Ovarian reserve assessment (with AMH)
• PCOS evaluation
Men:
• Low sperm count investigation
• Evaluating testicular function
• Low testosterone workup
Interpreting Results
High FSH in Women:
• Menopause or approaching menopause
• Primary ovarian insufficiency (premature ovarian failure)
• Diminished ovarian reserve
Low FSH in Women:
• Pituitary dysfunction
• Hypothalamic amenorrhea
High FSH in Men:
• Primary testicular failure
• Klinefelter syndrome
Low FSH in Men:
• Pituitary dysfunction
How It Works
1. Order your test online – no doctor visit required
2. Visit any Quest Diagnostics location nationwide
3. Simple blood draw takes approximately 5 minutes
4. Results delivered to your secure portal within 1-2 business days
Preparation
No fasting required. Women may be advised to test on cycle day 2-4 for fertility evaluation.
Related Tests to Consider
• LH – Usually tested with FSH
• FSH & LH Panel – Combined test
• AMH – Ovarian reserve marker
• Estradiol – For women
Why Choose Wittmer Rejuvenation Clinic
At $18, our FSH test is affordably priced. We partner with Quest Diagnostics for reliable, CLIA-certified laboratory testing.
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