The thyroid ultrasound provides clear images of the patients' thyroid gland which helps the doctor to check if the gland is functioning normally or if there is any abnormality regarding the gland. It also helps in diagnosing any underlying diseases which might take a while to show symptoms.
Ultrasounds may also be ordered if the doctor requires to take a biopsy of the thyroid or encompassing tissues to test for any existing conditions.
An ultrasound can give the doctor a lot of valuable information, such as:

• if a growth is fluid-filled or solid
• the number of growths
• where the growths are formed
• if growth has distinct boundaries
• blood flow to the growth

Ultrasounds can also detect a goiter and a swelling of the thyroid gland. Thyroid ultrasounds are extremely safe and cause no known complications, as it uses the sound waves to create the ultrasound images. These cause no known side effects. In fact, one of the advantages of ultrasound over some other imaging techniques is its safety record. The thyroid ultrasound process is one of the safest screening and imaging processes in the medical history.

The thyroid ultrasound will most probably be performed in the hospitals. Prior to the test, the patient is requested to remove any kinds of metal accessories, as they can affect the images of the ultrasound. The patient might be told to remove their shirt and lie on their back, however, If their clothing does not obscure the neck, then there won't be any need to remove the shirt. If necessary, the patient can change into a hospital gown. .The doctor might inject some contrast agents into the bloodstream to get more precise images at times.