Luteinizing Hormone

FSH and LH are hormones produced in a gland in the brain (the pituitary gland). The FSH (female hormone) helps development of follicles. These are the part of the ovary which produces the egg for the eventual production of a baby. These two hormone levels are used in work-ups for infertility. The levels also help determine the most fertile time in a woman's cycle. This an aid for conception (getting pregnant).


No preparation or fasting is necessary.


Values may vary depending on assay method.

Female Adult

  • Luteinizing hormone

  • Follicular phase: 1.68-15 (international units/L)

  • Ovulatory peak: 21.9-56.6 (international units/L)

  • Luteal phase: 0.61-16.3 (international units/L)

  • Postmenopause: 14.2-52.3 (international units/L)

  • Follicle-stimulating hormone

  • Follicular phase: 1.37-9.9 (international units/L)

  • Ovulatory peak: 6.17-17.2 (international units/L)

  • Luteal phase: 0. 1.09-9.2 (international units/L)

  • Postmenopause: 19.3-100.6 (international units/L)

Female Child (age 1-10 years)

  • Luteinizing hormone: 0.03-3.9 (international units/L)

  • Follicle-stimulating hormone: 0.68-6.7 (international units/L)

Ranges for normal findings may vary among different laboratories and hospitals. You should always check with your doctor after having lab work or other tests done to discuss the meaning of your test results and whether your values are considered within normal limits.


Your caregiver will go over the test results with you and discuss the importance and meaning of your results, as well as treatment options and the need for additional tests if necessary.


It is your responsibility to obtain your test results. Ask the lab or department performing the test when and how you will get your results.