The doctor will do a physical exam. This involves feeling your neck as you swallow. Swelling in the area of the thyroid may be felt.
If you have a very large goiter, you may have swelling in your neck vein. As a result, when the doctor asks you to raise your arms above your head, you may feel dizzy.
Blood tests may be ordered to measure thyroid function:
Tests to look for abnormal and possibly cancerous areas in the thyroid gland include:
If nodules are found on an ultrasound, a biopsy may be needed to check for thyroid cancer.