Hyperthyroidism is a condition characterized by an excessive production of thyroid hormones which are used to regulate metabolism of cells in our body. There are several causes of hyperthyroidism. Graves’ disease is the most common of them. Other causes are thyroid nodules, and thyroiditis. Consumption of too much iodine or thyroid hormone medicines. . . .+
The term hyperthyroidism refers to any condition in which the body produces more than required amount of thyroid hormone. In other words, the thyroid gland is overactive and functioning abnormally. Another term that you might hear for this problem is thyrotoxicosis, which refers to high thyroid hormone levels in the bloodstream, irrespective of their source.
Thyroid hormone is an important hormone that plays a significant role in metabolism. Hyperthyroidism may be present with significant symptoms. Since overactive thyroid gland increases the metabolism, many individuals initially have a lot of energy. However, as the body tends to break down, feeling lethargic is quite common.
Hyperthyroidism is caused by many reasons. Most commonly, the entire thyroid gland is overproducing thyroid hormone. But sometimes, only a single nodule (part of the thyroid gland) is responsible for the over secretion of hormone. The nodule working abnormally is called as “hot nodule”.
Availability of a wide range of blood tests to confirm and rule out the possibility of hyperthyroidism has made diagnosis more easy and accurate. These diagnostic tests give results in a day or two. The level of the thyroid hormones is measured in blood in some of these tests.
Various treatments are available for hyperthyroidism (overactive thyroid). These include medication, surgery, and radioiodine treatment. Thionamides are commonly prescribed medicines for an overactive thyroid. They stop the thyroid producing excess hormones. Your doctor may ask you to take the medicine for a month or two before evaluation of any benefit.