Can anyone tell me what causes an overactive thyroid?!
Question: Can anyone tell me what causes an overactive thyroid!?
Answers:
Graves' disease is the most common cause of hyperthyroidism in the UK!. It is more likely to occur in women between the ages of 30 and 50!. Graves' disease is an autoimmune disease!. This means that it's caused by antibodies from your immune system attacking your body!.
In Graves' disease, the antibodies mimic the activity of TSH, causing the thyroid gland to produce too much thyroid hormone, leading to hyperthyroid symptoms (see Symptoms)!.
About one in 20 people with Graves' disease also develop thyroid eye disease, also called Graves' ophthalmopathy!. This is when the muscles in your eyes and surrounding tissue swell up, giving the eyes a bulging appearance!. Your eyes may become red and puffy, and, occasionally, it can lead to double vision or limited eyeball movement!. Thyroid eye disease doesn't always develop at exactly the same time as Graves' disease!. It can occur before or after it as well!.
You are more likely to get Graves' disease if you have close relatives affected by it!.
Small lumps or nodules within the thyroid gland also cause hyperthyroidism!. Abnormal thyroid tissue within these nodules produces too much thyroid hormone!. If one nodule forms, this is called toxic solitary adenoma!. If more than one nodule forms, it is called a toxic multinodular goitre
There are other causes of hyperthyroidism, but these are rarer!. For example, an inflamed thyroid gland (thyroiditis), which can be caused by a viral infection or an autoimmune attack, causes hyperthyroidism!. Thyroiditis is also more likely if you are pregnant!.
If you take too much medication that contains iodine, it may cause hyperthyroidism!. An example is amiodarone, which is used to treat irregular heart beats!.Www@Answer-Health@Com
In Graves' disease, the antibodies mimic the activity of TSH, causing the thyroid gland to produce too much thyroid hormone, leading to hyperthyroid symptoms (see Symptoms)!.
About one in 20 people with Graves' disease also develop thyroid eye disease, also called Graves' ophthalmopathy!. This is when the muscles in your eyes and surrounding tissue swell up, giving the eyes a bulging appearance!. Your eyes may become red and puffy, and, occasionally, it can lead to double vision or limited eyeball movement!. Thyroid eye disease doesn't always develop at exactly the same time as Graves' disease!. It can occur before or after it as well!.
You are more likely to get Graves' disease if you have close relatives affected by it!.
Small lumps or nodules within the thyroid gland also cause hyperthyroidism!. Abnormal thyroid tissue within these nodules produces too much thyroid hormone!. If one nodule forms, this is called toxic solitary adenoma!. If more than one nodule forms, it is called a toxic multinodular goitre
There are other causes of hyperthyroidism, but these are rarer!. For example, an inflamed thyroid gland (thyroiditis), which can be caused by a viral infection or an autoimmune attack, causes hyperthyroidism!. Thyroiditis is also more likely if you are pregnant!.
If you take too much medication that contains iodine, it may cause hyperthyroidism!. An example is amiodarone, which is used to treat irregular heart beats!.Www@Answer-Health@Com
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Hyperthyroidism (thyrotoxicosis or "fast thyroid gland") is the clinical syndrome caused by an excess of circulating free thyroxine (T4) and free triiodothyronine (T3), or both!. Major causes of hyperthyroidism in humans are Graves' disease (the most common etiology with 70-80%), toxic thyroid adenoma, toxic multinodular goitre, and subacute thyroiditis!.
The major and generally accepted modalities for treatment of hyperthyroidism in humans are:
- surgery
- radioiodine treatment
- thyrostatics - drugs that inhibit the production of thyroid hormones, such as methimazole (Tapazole?)
If too high a dose is used in pharmacological hyperthyroidism treatment, patients can develop symptoms of hypothyroidism!. Hypothyroidism is also a very common result of surgery or radiation treatment for hyperthyroidism as it is difficult to gauge how much of the thyroid gland should be removed!. Supplementation with levothyroxine may be required in these cases!.Www@Answer-Health@Com
The major and generally accepted modalities for treatment of hyperthyroidism in humans are:
- surgery
- radioiodine treatment
- thyrostatics - drugs that inhibit the production of thyroid hormones, such as methimazole (Tapazole?)
If too high a dose is used in pharmacological hyperthyroidism treatment, patients can develop symptoms of hypothyroidism!. Hypothyroidism is also a very common result of surgery or radiation treatment for hyperthyroidism as it is difficult to gauge how much of the thyroid gland should be removed!. Supplementation with levothyroxine may be required in these cases!.Www@Answer-Health@Com
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