What is the main cause of Graves disease?

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asked Apr 3, 2018 in Diseases Conditions by Joiece (310 points)
What is the main cause of Graves disease?

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answered Apr 3, 2018 by Lilly21 (57,780 points)
Graves disease is most commonly caused by an overactive thyroid.

When you have Graves disease your immune system starts making antibodies that act like TSH which causes your thyroid to make more thyroid hormones than your body really needs.

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