What is Hyperthyroidism?
Thyroid normally has a self-control mechanism, which is also known as “feed back mechanism”. However, sometimes this control mechanism fails and the production of the hormones is more than the requirement. This clinical condition is called hyperthyroidism. The excess of thyroid hormones result in certain signs and symptoms of increased metabolic activity. In such patients, the levels of FT3 and FT4 are above normal values and the TSH levels drop (exactly opposite to hypothyroidism).
