FSH Levels: Understand How This Hormone Indicates Your Fertility Potential Higher levels of follicle-stimulating hormone (FSH) indicate that there are fewer eggs available to ovulate.

Doctors use FSH level tests to identify possible perimenopause, menopause, and fertility issues, such as PCOS and POI. FSH test results alone cannot diagnose menopause, but they are an important tool.

Dr Nejat said FSH levels were just one marker of fertility and more studies were needed. “A woman’s age remains the most important factor in determining her success of conceiving.