The thyroid gland is an endocrine organ in the human body, capable of synthesizing and secreting thyroid hormones and maintaining human growth and development. The thyroid gland is an endocrine organ located in the front of the neck, on both sides of the trachea, and is capable of synthesizing and secreting thyroid hormones, promoting the metabolism of sugar, fat, and protein, maintaining human growth and development, promoting the development and maturation of the nervous system, and generating calcitonin, which regulates the balance of calcium in the body. If the thyroid gland functions abnormally, it may lead to abnormal secretion of thyroid hormones and a series of diseases such as hyperthyroidism and hypothyroidism. It is recommended that you seek medical attention if you have abnormalities such as abnormal thyroid function or enlargement of the thyroid gland.