Atlas
Sex hormones

Follicle-stimulating hormoneFSH

Drives ovarian follicle development and Sertoli-cell spermatogenesis support.

Sample
Serum
Clinical reference range
3.5 to 12.5 IU/L
Follicular
Conv: 3.512.5 IU/L
Biology

What it measures

Pulsatile under GnRH control; follicular phase elevations recruit dominant follicle.

Clinical use

Why we order it

Ovarian reserve estimation (day 3), menopause confirmation, infertility workup.

Related

Related biomarkers