<unk>  is very rare, with it only accounting for about 0.1–0.7% of all thyroiditis. Large hospitals tend to only see two cases of AIT annually. For the few cases of AIT that are seen the statistics seem to show a pattern. AIT is found in children and young adults between the ages of 20 and 40. The occurrence of the disease in people between 20 and 40 is only about 8% with the other 92% being in children. Men and women are each just as likely to get the disease. If left untreated, there is a 12% mortality rate.
Acute infectious thyroiditis
Subacute thyroiditis
Radiation-induced thyroiditis
Subacute lymphocytic thyroiditis
Hashimoto's thyroiditis
Ord's thyroiditis
Postpartum thyroiditis
Thyroid lymphoma