Generally, surgery is the first-line thyroid cancer treatment. For benign or very low-risk thyroid cancers, surgery may not be necessary until later on. First, if a thyroid cancer is found early enough and it has not spread, only one side of the thyroid will be removed. Partial thyroidectomy or lobectomy is the official term.
For larger cancers and those that have potentially spread to both lobes of the thyroid, the entire gland needs to be removed (total thyroidectomy).
Because thyroid is responsible for synthesizing and secreting several hormones that affect the entire body, cutting off part or all of the gland can leave you with a hormonal imbalance. This is one of the major drawbacks of thyroidectomies and is why doctors may prefer to leave any growths alone if they aren’t causing a lot of problems yet.
After surgery, you can expect a downtime of several weeks as your body heals and recovers. To prevent infections and reduce pain, your doctor will prescribe pain relievers and antibiotics.
Additionally, you will need to take thyroid hormone replacement (THR) drugs. In the case of a partial thyroidectomy or lobectomy, this may only be temporary until your thyroid is able to make enough hormones. Unfortunately, for total thyroidectomies, THR therapy is life-long.
The most common drug used in THR therapies is levothyroxine (L-thyroxine). It is a synthetic version of the body’s natural thyroid hormone, thyroxine. Levothyroxine also treats hypothyroidism due to other causes such as Hashimoto’s disease.