Follicle Stimulating Hormone (FSH) Test

The follicle-stimulating hormone (FSH) test is a blood test that measures the levels of FSH in the bloodstream. FSH is a hormone produced by the pituitary gland that plays a key role in the reproductive system. In women, FSH helps regulate the menstrual cycle and is involved in the development of eggs in the ovaries. In men, FSH is important for the production of sperm.

An FSH test may be ordered to help diagnose conditions related to fertility and reproductive health, such as infertility, menstrual irregularities, and early or delayed puberty. It may also be used to monitor the effectiveness of fertility treatments or to investigate the function of the pituitary gland.

Normal FSH levels can vary depending on age and sex. Abnormal levels of FSH may indicate conditions such as polycystic ovary syndrome (PCOS), primary ovarian insufficiency, or pituitary disorders. Your healthcare provider will interpret the results of the FSH test in conjunction with other tests and your medical history to make an accurate diagnosis.

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