What Is Follicle-Stimulating Hormone (FSH)?

What it is

FSH is a pituitary hormone that regulates ovarian function; levels rise as ovarian reserve declines.

Why it matters

Elevated FSH indicates reduced ovarian reserve / menopause, used in fertility evaluation.

Specimen

Urine / blood

Interpretation

Elevated = supports menopause/ovarian assessment.

Limitations

Interpret with LH and clinical context.

Related test: FSH Rapid Test — specimen: Urine