Why Is Hypothyroidism Relative to Thyroid Diseases?

2 Answers

These messages are for mutual support and information sharing only. Always consult your doctor before trying anything you read here.
Hypothyroidism stems from an underproduction of thyroid hormones. Since your body's energy production requires certain amounts of thyroid hormones, a drop in hormone production leads to lower energy levels. Causes of hypothyroidism include:
  • Hashimoto's thyroiditis: In this autoimmune disorder, the body attacks thyroid tissue. The tissue eventually dies and stops producing hormones.
  • Removal of the thyroid gland: The thyroid may have been surgically removed or chemically destroyed.
  • Exposure to excessive amounts of iodide: Cold and sinus medicines, the heart medicine amiodarone, or certain contrast dyes given before some X-rays may expose you to too much iodine. You may be at greater risk for developing hypothyroidism if you have had thyroid problems in the past.
Key word: hypothyroidism thyroid disease
I had a thyroidectomy years ago have been on levothyroxine all this time had thyroid test this week results were tish 0.191 t411.06 dr lowered medication from levothrixine 137 mcg to 100 my question is what caused my t4 to be high???
Your T4 is high and TSH is low, indicating a hyperactive state of thyroid. Given that you have thyroidectomy, this hyperactive state is probably caused by your taking too much levothyroxine. Your high T4 can be caused by the levothyroxine.