Thyroid Disease (cont.)

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What types of thyroid disease can occur when the function of the thyroid is affected?

Hypothyroidism can result if the thyroid is underactive or if regulators of the thyroid malfunction. Among many causes of hypothyroidism are:

Hyperthyroidism can result if the thyroid is overactive, or when regulators of the thyroid stimulate the thyroid to produce too much hormone. Among causes of hyperthyroidism are:

  • Graves' disease
  • Toxic multinodular goiter
  • Toxic nodule "hot" nodule
  • Excessive intake of iodine
  • Hashitoxicosis
  • Medications (ingesting thyroid hormone)

What is a goiter?

A goiter is simply an enlarged thyroid gland. Multiple conditions can lead to goiter, including hypothyroidism, hyperthyroidism, excessive iodine intake, or thyroid tumors. Goiter is a non-specific finding but warrants medical evaluation.

Medically Reviewed by a Doctor on 8/7/2013

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