Hyperthyroidism Causes

Hyperthyroidism Causes

by Avery Mann

A look at what causes hyperthyroidism.

Are you sweating more than usual? Feeling nervous and jittery? Are you also  losing weight and your heart is beating fast? If you have any or all of these  symptoms, you just might have an overactive thyroid. If you or someone you love  is dealing with symptoms like these, you need to learn hyperthyroidism causes,  visit the doctor and get a blood test for hyperthyroidism.

Hyperthyroidism defined. The thyroid is a gland in your  neck. While it may be small and inconspicuous, its role in the body is very  important. If the thyroid is malfunctioning and producing too much thyroid  hormone (thyroxine), the body develops hyperthyroidism, states the Mayo Clinic. It may sound like a weight loss plan, but  thyroxine needs to be at normal levels for your body to be healthy. An  overactive thyroid can lead to problems with your heart, bones, eyes and skin  and also cause a condition known as thyrotoxic crisis.

Causes of hyperthyroidism. When the thyroid produces too  much thyroid hormone, it is important to learn what is causing it for the best  treatment. Several conditions can cause a faulty thyroid gland. Some causes  include:

  • Graves’ disease — The body’s immune system produces antibodies that  normally protect the body from viruses, bacteria and other foreign substances.  With Graves’ disease, the immune system attacks the body (particularly the  thyroid) instead of protecting it. In the case of Graves’ disease, these  antibodies cause an increase the release of thyroxine. Doctors are not certain  what causes this malfunction of the immune system, but a genetic propensity is  suspected.
  • Toxic multinodular goiter — Toxic adenoma, Plummer’s disease and toxic  multinodular goiter all fall under the hyperfunctioning thyroid nodules  category. Part of the thyroid forms benign lumps that can enlarge the gland.  While it is not understood why the nodules form, they can cause an excess of  thyroxine.
  • Thyroiditis — For some unknown reason, the thyroid becomes inflamed and  causes excess thyroid hormone to leak into the bloodstream. There are several  types of thyroiditis. Some types cause pain, and others are pain free.  Thyroiditis can also occur after a pregnancy.

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