FSH (Follicle Stimulating Hormone)


It's responsible for the growth of ovarian follicles. Follicles produce estrogen and progesterone in the ovaries and help maintain the menstrual cycles in women. In men, FSH is a part of the development of the gonads as well as sperm production. The FSH test measures the level of FSH found in your blood. This test is also useful in the differential diagnosis of pituitary and gonadal insufficiency and in children with precocious puberty.

FSH (Follicle Stimulating Hormone)


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  • Fasting Required: NO
  • Preferred Specimen: Serum
  • Limitations: Only third generation FSH testing is appropriate to assess gonadal dysfunction in non-adults (<18 years). Combined with luteinizing hormone (LH), FSH is useful in the diagnosis and management of infertility and in monitoring FSH suppressive therapy.
  • Reference Range(s):
    Male 1.6-8.0 mIU/mL
    Follicular Phase 2.5-10.2 mIU/mL
    Mid-Cycle Peak 3.1-17.7 mIU/mL
    Luteal Phase 1.5-9.1 mIU/mL
    Postmenopausal 23.0-116.3 mIU/mL
  • Turnaround Time: 3 Days
  • Test Code: 470