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What Is a Blood FSH Level?

FSH is a follicle-stimulating hormone. Blood tests measuring FSH levels help determine reasons for infertility in both men and women, as well as early or delayed puberty in children. FSH levels can also help diagnose conditions ranging from menstrual irregularities to pituitary gland disorders.

  1. FSH

    • FSH is the hormone that promotes egg production in women, and sperm production in men, according to the University of Michigan Health System.

    Indications For Use

    • A test of FSH levels can uncover the reasons for fertility problems or help diagnose diseases of the sex organs or pituitary gland, according to Lab Tests Online.

    FSH In Men

    • High FSH levels in men indicate a problem with the testicles such as an infection, tumor or immune system problem. Low levels imply a disorder of the pituitary gland.

    FSH In Women

    • Lab Tests Online states that low FSH levels in women tend to occur when ovarian reserves are low. High FSH levels indicate the onset of menopause.

    FSH In Children

    • Children displaying signs of early puberty may have higher FSH levels than usual for their age, while low FSH levels can explain a delay in puberty.

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