What Is the Main Cause of Thyroid Disease?
The two main types of thyroid disorder - hypothyroidism and hyperthyroidism - are caused by other conditions that impact the way the thyroid gland works.
Conditions that can cause hypothyroidism (underactive thyroid) include:
- Postpartum thyroiditis: usually temporary; occurs in 5% to 9% of women following childbirth.
- Iodine deficiency: iodine is used by the thyroid to produce hormones - when there is not enough iodine fewer hormones will be produced.
