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Hyperthyroidism Risk Factors

If you are a woman, your chances of developing hyperthyroidism (an overactive thyroid) are 5 to 10 times greater than that of a man. Other risk factors for hyperthyroidism relate to medical conditions you may have, such as type 1 diabetes, or lifestyle decisions you make, such as smoking.

What Are Some Risk Factors for Hyperthyroidism?

Hyperthyroidism is when a person's thyroid makes an excess of thyroid hormones relative to the body's needs. It can be caused by a number of different conditions or situations (see Hyperthyroidism Causes).
 
There are also factors that can increase a person's chances for developing hyperthyroidism. These are known as hyperthyroidism risk factors.
 
One risk factor is being a woman. Women are 5 to 10 times more likely than men to develop hyperthyroidism. Other people at risk for an overactive thyroid include those with:
 
Risk factors also include those people:
 
  • Who eat large amounts of food containing iodine, such as kelp, or use iodine-containing medications, such as amiodarone, a heart medication
  • Are older than 60 years of age
  • Who have been pregnant or delivered a baby within the past six months
  • Who smoke.
     
Written by/reviewed by: Arthur Schoenstadt, MD
Last reviewed by: Arthur Schoenstadt, MD
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