How it Works

During a thyroid ultrasound, a handheld device called a transducer is placed on the neck. The transducer emits high-frequency sound waves that pass through the skin and tissues and bounce back when they encounter the thyroid gland. These echoes are then converted into real-time images on a monitor, allowing the healthcare provider to assess the thyroid glands appearance and identify any abnormalities.

When it is Needed

Thyroid ultrasound may be recommended in the following situations:

Thyroid nodules: To evaluate the size, characteristics, and location of thyroid nodules, which are abnormal growths or lumps within the thyroid gland.

Goiter: To assess the size and structure of an enlarged thyroid gland.

Thyroid cancer screening: As part of routine screening or if there are signs or symptoms suggestive of thyroid cancer.

Thyroiditis: To examine the thyroid gland for inflammation or infection.

Follow-up evaluation: To monitor changes in the thyroid gland or nodules over time.

Risks and Complications

Thyroid ultrasound is generally considered safe and does not involve exposure to ionizing radiation. However, there are minimal risks associated with the procedure:

Discomfort: The gel applied to the skin and the pressure of the transducer may cause mild discomfort or temporary skin irritation.

Allergic reactions: In rare cases, some individuals may experience an allergic reaction to the ultrasound gel. It is important to inform the healthcare provider of any known allergies beforehand.

Rare complications: Extremely rare complications, such as bleeding or infection, may occur if the ultrasound-guided needle biopsy is performed during the same session.

It’s important to note that thyroid ultrasound is typically a safe and well-tolerated procedure. The benefits of the imaging information obtained usually outweigh the potential risks or discomfort associated with the examination. If you have specific concerns or questions about the procedure, it’s recommended to discuss them with your healthcare provider beforehand.

Overall, thyroid ultrasound is a valuable diagnostic tool that provides detailed images of the thyroid gland, assisting healthcare providers in evaluating and diagnosing various thyroid conditions. It is a non-invasive and generally safe procedure that plays a crucial role in assessing thyroid health and guiding appropriate treatment decisions.