Skip to content

Women's Health

Font Size

Hyperthyroidism - Cause

Graves' disease is the most common cause of hyperthyroidism. Graves' disease causes the thyroid gland to make too much thyroid hormone. Graves' disease, like many thyroid problems, often runs in families.

Other common causes include:

Recommended Related to Women

Counting Her Blessings

By Lesley Dormen This season, Meredith Vieira is grateful for the right job at the right time, her fabulous kids, her mom's Thanksgiving legacy; and even the tough times that strengthened her marriage. "Sit here," Meredith Vieira says in that delicious butter-pecan scoop of a voice (serious shot through with sexy, the A student who's still up for mischief). She offers me one of two small, straight-backed chairs in her cluttered dressing room/office, pulls up the other — ignoring...

Read the Counting Her Blessings article > >

  • Thyroid nodules. Thyroid nodules are abnormal growths in the thyroid gland that can make too much thyroid hormone. For more information, see the topic Thyroid Nodules.
  • Thyroiditis.Thyroiditis occurs when your body makes antibodies that damage your thyroid gland. You can also get thyroiditis from a viral or bacterial infection. At first, thyroiditis may cause your thyroid levels to rise as hormone leaks out from the damaged gland. Later, levels may be low (hypothyroidism) until the gland repairs itself.

Uncommon causes of hyperthyroidism include tumors or eating foods or taking medicines that contain large amounts of iodine.

Hyperthyroidism can occur at any age but rarely affects children. It affects women more often than men.

    This information is produced and provided by the National Cancer Institute (NCI). The information in this topic may have changed since it was written. For the most current information, contact the National Cancer Institute via the Internet web site at http:// cancer .gov or call 1-800-4-CANCER.

    WebMD Medical Reference from Healthwise

    Last Updated: November 14, 2014
    This information is not intended to replace the advice of a doctor. Healthwise disclaims any liability for the decisions you make based on this information.
    Next Article:

    Today on WebMD

    hands on abdomen
    Test your knowledge.
    womans hand on abdomen
    Are you ready for baby?
    birth control pills
    Learn about your options.
    Is it menopause or something else?
    woman in bathtub
    bp app on smartwatch and phone
    estrogen gene

    Send yourself a link to download the app.

    Loading ...

    Please wait...

    This feature is temporarily unavailable. Please try again later.


    Now check your email account on your mobile phone to download your new app.

    Blood pressure check
    hot water bottle on stomach
    Attractive young woman standing in front of mirror