The symptoms of subacute thyroiditis usually go away within 12 to 18 months. In some cases, however, hypothyroidism may end up being permanent. The American Thyroid Association estimates that approximately 5 percent of people with subacute thyroiditis develop permanent hypothyroidism.

How long does thyroiditis take to heal?

People who develop subacute thyroiditis usually have symptoms for 1 to 3 months, but complete recovery of thyroid function can take up to 12 to 18 months.

Can thyroiditis be temporary?

Thyroiditis and its symptoms may be temporary. In this case, you will be able to live a normal life following treatment. If the condition returns or is permanent, work with your doctor to manage symptoms. If you do not get treatment, damage to your thyroid may continue and could lead to more health issues.