What is an Overactive Thyroid?
An overactive thyroid (hyperthyroidism) is a condition caused by the thyroid gland producing too much of the hormone thyroxine. This causes a wide range of symptoms, including weight loss, anxiety, trembling, and fatigue. It can lead to serious health problems if left untreated.
What Causes an Overactive Thyroid?
The most common cause of an overactive thyroid is an autoimmune disorder called Graves’ disease. In this condition, the body’s own immune system attacks the thyroid gland, causing it to produce too much of the hormone thyroxine. Other causes of an overactive thyroid include thyroiditis (inflammation of the thyroid gland), tumors, and iodine deficiency.
How is an Overactive Thyroid Diagnosed?
If you suspect you may have an overactive thyroid, your doctor will likely order a blood test to measure your levels of thyroid hormones. This will help your doctor determine if your thyroid is producing too much hormone. Your doctor may also order imaging tests, such as an ultrasound or CT scan, to check for any abnormalities in the thyroid gland.
How is an Overactive Thyroid Treated?
The treatment for an overactive thyroid depends on the underlying cause. In most cases, medications such as antithyroid drugs or beta blockers can help to reduce the amount of thyroid hormone produced. Surgery may be recommended to remove part or all of the thyroid gland, and radioactive iodine therapy may be used to destroy the thyroid tissue. In some cases, lifestyle changes such as reducing stress and getting regular exercise can help to manage symptoms.