The difference between thyroid and hyperthyroidism is that thyroid refers to one of the body’s endocrine glands, while hyperthyroidism refers to a problem with the function of the thyroid gland itself. The thyroid gland is an important endocrine gland that secretes thyroid hormones and is regulated by a higher level gland, the pituitary gland. The full name of hyperthyroidism is hyperthyroidism, which refers to the uncontrolled secretion of too much thyroid hormone by the thyroid gland for various reasons or the release of too much thyroid hormone into the bloodstream after the destruction of the thyroid gland itself, resulting in high thyroid hormone levels in the blood. Therefore, the difference between thyroid and hyperthyroidism is that the two have different medical knowledge and represent different meanings.