A thyroidectomy is an operation that involves the surgical removal of all or part of the thyroid gland. In general surgery, endocrine or head and neck surgeons often perform a thyroidectomy when a patient has thyroid cancer or some other condition of the thyroid gland or goiter.

What happens when you get your thyroid removed?

If your entire thyroid is removed, your body can't make thyroid hormone. Without replacement, you'll develop signs and symptoms of underactive thyroid (hypothyroidism). Therefore, you'll need to take a pill every day that contains the synthetic thyroid hormone levothyroxine (Synthroid, Unithroid, others).

When Should thyroid be removed?

Your doctor may recommend surgery to remove part or all of your thyroid gland if it's overactive, has grown very large, or has nodules, cysts or other growths that are—or could be—cancerous.