Medical thyroid problems have many causes, the primary ones being Graves’ disease, Subacute thyroiditis, removal of the thyroid gland, autoimmune disorders and too much iodine. These causes result in the production of an excessive or insufficient amount of thyroid hormone, according to WebMD.
The thyroid gland is an organ located near the base of the neck and controls the body’s metabolism. Its produces thyroid hormones, which in turn regulate how the body uses energy and determine the heart rate, weight and blood pressure, notes Healthline.
Graves’ disease occurs due to too much production of thyroid hormone, a condition called hyperthyroidism. This condition is common in women and can run in families. Sometimes, the thyroid gland does not produce enough thyroid hormone, a condition called hypothyroidism. This action makes the body unable to regulate chemical reactions, use energy from food, and maintain healthy bones, muscles and cells, according to Healthline.
Subacute thyroiditis occurs due to thyroid inflammation and lasts for a few weeks to a month. Medical thyroid problems can also result from destruction or removal of the thyroid gland. An autoimmune disorder such as Hashimoto's thyroiditis can also cause these problems, making tissues to die and stop producing thyroid hormones. Moreover, excessive amounts of iodine can inhibit thyroid hormone production, causing hypothyroidism, explains WebMD.