Fertility 101

Understanding FSH Levels: Your Complete Guide to Fertility Testing

Follicle-stimulating hormone (FSH) is one of the most important markers in fertility assessment. Understanding your FSH levels can provide valuable insights into ovarian reserve and reproductive potential. FSH is…

February 20, 2026
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Follicle-stimulating hormone (FSH) is one of the most important markers in fertility assessment. Understanding your FSH levels can provide valuable insights into ovarian reserve and reproductive potential.

FSH is produced by the pituitary gland and plays a crucial role in the development of eggs in the ovaries. Elevated FSH levels may indicate diminished ovarian reserve, while normal levels generally suggest a healthy egg supply.

Your doctor will typically measure FSH on day 2 or 3 of your menstrual cycle. Results are interpreted alongside other markers like AMH and antral follicle count to give a comprehensive picture of your fertility status.