Causes of hyperthyroidism
Graves’s disease is an autoimmune disorder wherein the immune system attacks the thyroid, causing it to “overreact” and produce high levels of thyroid hormones.
Graves’ disease is the most common cause of hyperthyroidism. The condition is linked to other diseases such as celiac disease, pernicious anemia, type 1 diabetes, lupus, and rheumatoid arthritis.
Thyroid nodules are lumps filled with fluid that grow inside the thyroid. Hyperfunctioning nodules can result in the overproduction of hormones. Thyroid nodules are not usually cancerous.
Thyroid nodules can cause difficulty in breathing, pain in the neck and enlargement of the thyroid gland.
Thyroiditis is the collective term for a group of diseases that cause inflammation or swelling of the thyroid gland. These can be due to drugs, viruses, or bacteria. It can also be caused by diseases that causes the immune system to attack the body (autoimmune diseases).
Too much iodine
Iodine can be found in a lot of food and medicines. Salt available in the market is usually infused with iodine. Too much iodine in the system can cause the thyroid gland to produce more hormones.
Anyone can get hyperthyroidism but the disease is more common in: