What is hypothyroidism?
A person with hypothyroidism has an under-active thyroid gland that does not release enough thyroid hormone into the bloodstream. Thyroid hormone regulates metabolism. The most common cause of hypothyroidism in the US is Hashimoto thyroiditis. Hypothyroidism usually occurs between the ages of 30 and 50. With treatment, most people with hypothyroidism lead a normal life.

What are the symptoms of hypothyroidism?
Symptoms of hypothyroidism include cold intolerance, dry hair, dry skin, neck swelling, thyroid gland enlargement, lethargy, low body temperature, constipation, loss of appetite, weakness, fatigue, and weight gain.

How does the doctor treat hypothyroidism?
Treatment for hypothyroidism often includes thyroid hormone supplements, and surgery to remove a large thyroid goiter.