You may be shocked to find out that you have thyroid cancer. You may also feel angry, scared, depressed, or anxious. There is no normal or right way to react to or cope with having cancer. Try to remember to take care of yourself and to get help when you need it.

The goal of treatment for thyroid cancer is to get rid of the cancer cells in your body. How this is done depends on your age, the type of thyroid cancer you have, the stage of your cancer, and your general health.

Most people have surgery to remove part or all of the thyroid gland. Sometimes a suspicious lump or nodule has to be surgically removed before you will know if you have cancer or not.

After surgery, you may need treatment with radioactive iodine to destroy any remaining thyroid tissue. When you no longer have all or part of your thyroid gland, you will probably need to take thyroid hormone medicines for the rest of your life. These medicines replace necessary hormones that are normally made by the thyroid gland and prevent you from having hypothyroidism-too little thyroid hormone. For more information on hypothyroidism, see the topic Hypothyroidism.

Initial treatment

Your treatment for thyroid cancer may include:

• Surgery to remove the part of the thyroid gland that contains cancer. Removing one part (lobe) is called a lobectomy. Removing both lobes is called a total thyroidectomy. Removing all but a very small part of the thyroid is called a near-total thyroidectomy. Lymph nodes may also be removed during surgery.
• Radioactive iodine, which is used after surgery to destroy any remaining thyroid tissue. After you have your thyroid surgically removed, you may have to wait several weeks before having radioactive iodine treatment to destroy any remaining thyroid tissue. During the waiting period, you may have symptoms of hypothyroidism such as fatigue, weakness, weight gain, depression, memory problems, or constipation.
• Thyroid-stimulating hormone (TSH) suppression therapy. TSH suppression therapy reduces the TSH in your body, which may help prevent the growth of any remaining cancer cells.
• If thyroid cancer is advanced when it is diagnosed, initial treatment may also include chemotherapy or radiation therapy.

Ongoing treatment

After treatment for thyroid cancer, you may need to take thyroid hormone medicine for the rest of your life to replace the hormones that your body no longer makes. You will also need follow-up visits with your doctor every 6 to 12 months. In addition to scheduling regular visits, be sure to call your doctor if you notice another lump in your neck or if you have trouble breathing or swallowing.

At your follow-up visits, your doctor may order:

• A blood test to measure your thyroid-stimulating hormone (TSH) level. This test helps your doctor know if you are taking the right amount of thyroid hormone medicine.
• An ultrasound. This test helps your doctor check for any cancer in the thyroid area.
• A blood test to measure your thyroglobulin level. This test helps your doctor know if your cancer has come back. Before this test, you may have to stop taking your thyroid hormone medicine for several weeks.
• Serum calcitonin tests, if you had medullary thyroid cancer (MTC).
• A radioiodine scan to see if the cancer has come back or spread to other parts of your body.
• Other imaging tests to look for signs of cancer, such as X-rays, CT scans and, in rare cases, MRIs or PET scans.