Hypothyroidism occurs when the thyroid gland does not make enough thyroid hormone. Medication and proper therapy will help replace the lacking hormone. Doctors will prescribe the lowest dose possible that effectively relieves symptoms and brings hormone levels to a normal range. Lifelong therapy may be required.
Hyperthyroidism occurs when the thyroid gland makes too much thyroid hormone. The condition is often referred to as an overactive thyroid. How the condition is treated depends on the cause and severity of symptoms. Hyperthyroidism is usually treated with either antithyroid medications, radioactive iodine (which destroys the thyroid and stops excess production of hormones), or surgery to remove the thyroid.
Thyroid cancer is a cancer that starts in the thyroid gland. The thyroid gland is located inside the front of your lower neck. Thyroid cancer can occur in all age groups.