MedDroidLab test guide
FSH & LH Hormone Tests: normal range & what your result means
Written & medically reviewed by Dr. Sanjay Anbu, MBBS · Last reviewed
Medically reviewedFSH and LH are hormones from the pituitary gland that control the ovaries and testes. Their levels change through the menstrual cycle, so timing of the test matters.
About the test
Why the FSH and LH test is done
- Irregular or absent periods, and suspected PCOS
- Infertility in women or men
- Checking for menopause or early menopause
- Low testosterone or delayed puberty
Reference range
Typical adult range
| Measure | Typical adult range |
|---|---|
| FSH, women (early cycle) | About 3–10 IU/L |
| FSH, after menopause | Usually above 25–30 IU/L |
| FSH, men | About 1.5–12.4 IU/L |
| LH, women (early cycle) | About 2–12 IU/L |
| LH, men | About 1.7–8.6 IU/L |
Typical adult range; labs differ — use the range on your report. Ranges also vary with age, sex, pregnancy and the method used. Your doctor interprets the result alongside your symptoms and history.
Results
What a HIGH result can mean
- Menopause or early menopause (high FSH)
- Reduced ovarian reserve
- Testicular problems causing low sperm or testosterone in men
- A higher LH than FSH can be seen in PCOS (supportive, not diagnostic)
- Mid-cycle LH surge — normal around ovulation
Results
What a LOW result can mean
- Pituitary or hypothalamus problems
- Very low body weight, intense exercise or stress
- High prolactin, or hormone medicines
Preparation
Before the test
- Women are often tested on day 2–5 of the period
- Note the first day of your last period on the form
- Tell the lab about hormone medicines or contraception
Red flags
When to get urgent help
- Severe headache with vision problems (possible pituitary problem) — seek urgent care
- No periods for three months or more, or bleeding after menopause
Explore more
Related pages
References
Sources & further reading
Frequently asked questions
What does high FSH mean?
In women it often means the ovaries are less responsive, as in menopause or reduced ovarian reserve. In men it can point to a testicular problem.
What is the LH:FSH ratio in PCOS?
Some women with PCOS have LH higher than FSH, but many do not. PCOS is diagnosed from symptoms, ultrasound and other tests, not this ratio alone.
Which day of the cycle should FSH be tested?
Usually on day 2 to 5 of the period, counting the first day of bleeding as day 1. Your doctor may ask for a different day.