This procedure is performed in a hospital operating room using general anesthesia, so you are unconscious and pain-free. A small incision is made in your neck. A section of your thyroid containing any suspicious growth or lump is removed.

The thyroid tissue is sent to the laboratory to be examined while you are still on the operating table. The results of this analysis determine if additional thyroid tissue should be removed.

The incision is then closed.

Inform the doctor of any drug allergies you have, which medications you are taking (including any herbal remedies), if you have bleeding problems, and if you are pregnant.

When you wake up after the procedure, you will feel drowsy for several hours. You may have a mild sore throat from the tube that was placed in your throat. There will be some discomfort at the biopsy site.

This test is usually performed to determine the cause of a mass, growth, or tumor in your thyroid gland. This test may be used when a diagnosis cannot be made using fine needle aspiration.

The test may be used to help identify a variety of thyroid-related diseases, noncancerous tumors, or thyroid cancer.

The main risk is bleeding into or around the thyroid gland. If severe, emergency drainage may be required to prevent your airway from becoming blocked. Rarely, injury to the nerves of the vocal cords can occur. Injury to the parathyroid glands may also occur, which may cause problems in calcium metabolism.