Cause of hyperthyroidism ??

A month ago it was determined that I had slight hyperthyroidism (by a 0.5 deviation from normal values -- not a very large one as described by my doctor) and an ultrasound scan has determined the presence of a 'cold' nodule. So my question is if this cold nodule is not producing extra hormones, then what is the cause of the hyperthyroidism, since the rest of my thyroid is completely normal... and what can be done about both, the hyperthyroidism and the cold nodule.

thanks!

I am not sure that an ultrasound can determine that there is a cold nodule. As far as I know, a cold nodule is found during a test using radioactive iodine; if an area of the thyroid does not take up the iodine, it is said to be a cold nodule. So if you have not had that radioactive iodine test, you don't know if your nodule is cold or not. It could even be a hot nodule, which could be the cause of your hyperthyroidism. It would be best to get that issue clarified. There are other possible causes of hyperthyroidism, too, such as Graves' disease and thyroiditis. See the sources below for more information.

As for what can be done about both...well, that all depends on the cause. An endocrinologist should be able to sort it all out for you. Good luck, and I hope everything goes well.

Tags

　　Hypothermia 　　Hypotension 　　Hypoparathyroidism 　　Hypoglycemia 　　Hyperuricemia 　　Hypertriglyceridemia 　　Hyperthyroidism 　　Hypertension 　　Hyperparathyroidism 　　Hyperopia 　　Hypermobility Syndrome 　　Hyperlipidemia 　　Hyperactivity

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