The thyroid is a 5 cm in diameter gland located at the neck above the Adam's apple and shaped like a butterfly. The role of this organ is to secrete hormones, which serve to control the chemical functions of the metabolism and their speed. The influence of these hormones results in stimulating the tissues of the body to produce protein and increasing the amount of oxygen that cells use.
The thyroid, which is neither visible nor palpable (or difficult to), can become so and increase in size if infected. If it is a mild infection, it can be treated with medicines like Basdene or Cynomel. However, if the gland is affected by a more serious disease such as cancer, compressive goitre, or if it grows too large, a thyroidectomy should be performed.