Is There a Difference Between Hypothyroidism and Thyroid Issues?

The most common cause of having low thyroid hormone levels in the United States is autoimmune disease, or Hashimoto's autoimmune thyroiditis. You need iodine and selenium to make thyroid hormone; some patients have had hypothyroidism from iodine deficiency. Other things could be, well, there are reasons we have to take the thyroid out,. people can have primaryhypothyroidism because they don't have a thyroid anymore.