It is sometimes called subacute<unk> , but there are other forms of subacute<unk> , subacute lymphocytic<unk> , postpartum<unk> , and autoimmune<unk>  all of which, in contrast to de<unk> 's, are typically painless or "silent". It is also sometimes called "painful subacute<unk> ". This is in contrast to subacute lymphocytic<unk> , which is also sometimes called "painless<unk> ".
De Quervain's thyroiditis
Ord's thyroiditis
Riedel's thyroiditis
Hashimoto's thyroiditis
Subacute thyroiditis
Radiation-induced thyroiditis
Subacute lymphocytic thyroiditis
Thyroid lymphoma