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    Follicle-Stimulating Hormone

    Follicle-Stimulating Hormone



    What Affects the Test

    Results of the follicle-stimulating hormone (FSH) test may be affected by:

    • The use of hormones, such as testosterone, estrogen, and progesterone (including birth control pills).
    • Heavy cigarette smoking.
    • Age.
    • The use of medicines, such as cimetidine, clomiphene, digitalis, and levodopa. Make sure your doctor has a complete list of all the prescription and over-the-counter medicines you are taking, including herbs and natural substances.
    • Having a test such as a thyroid scan or bone scan that uses a radioactive substance within 1 week of the FSH test.


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