A thyroid ultrasound is recommended not only for people with known thyroid conditions. It can also be useful if you experience fatigue or weakness, mood swings, anxiety, apathy, unexplained weight changes, hair loss, dry skin, brittle nails, a feeling of a lump in your throat, hoarseness, difficulty swallowing, or irregular menstrual cycles. A family history of thyroid disease is another reason to consider an examination.
Why is it needed?
Ultrasound shows the structure of the thyroid gland, including its size, contours, tissue consistency, and the presence and characteristics of any nodules.
Thyroid nodules often cause no noticeable symptoms, but identifying them helps determine whether monitoring or additional tests are needed.
Most thyroid nodules are benign and do not require surgery. However, an examination is necessary to assess them properly.
When should you have a thyroid ultrasound?
The examination may be recommended once a year or every two years as a preventive measure, when planning a pregnancy, or if you experience the symptoms described above.
It is also used to monitor previously identified nodules at intervals recommended by your doctor.
For a more complete assessment, ultrasound can be combined with blood tests measuring thyroid-stimulating hormone and thyroid hormone levels.
How is the examination performed?
You lie down while the doctor applies ultrasound gel and moves the probe over the front of your neck.
The procedure is painless, safe, and usually takes 10–15 minutes. No special preparation is required, although it is best to wear clothing that leaves your neck accessible.