Thyroid nodules are abnormal growths within the thyroid gland that are often harmless but may require evaluation to determine whether they affect thyroid function or require treatment.
The thyroid is a butterfly-shaped gland located at the base of the front of the neck. It produces thyroid hormone, which controls your metabolism, temperature regulation, and keeps your muscles and organs working properly. Diseases of the thyroid, whether functional (hypothyroidism, hyperthyroidism) or structural (nodule, goiter, cancer), occur very commonly.
A nodule is an area of abnormal growth within the thyroid gland. Some people have a single nodule, while others have multiple nodules within the gland. Thyroid nodules, which are particularly common in women, can be tiny to very large in size.
Most thyroid nodules are non-cancerous, do not cause symptoms, and do not need any treatment. In some cases, however, because of the size, appearance (on radiology tests), or symptoms caused by the nodule, additional evaluation and treatment may be needed.




