The full name of subacute thyroiditis is subacute thyroiditis, the recovery time of blood sedimentation varies from person to person, it can be several weeks to more than half a year, usually about 2 to 3 months, the specific recovery time depends on the condition and recovery. Subacute thyroiditis is a self-limiting thyroiditis associated with viral infection, and most can be cured. Subacute thyroiditis can be divided into three periods, which are early, middle, and recovery, and the blood sedimentation in the early and middle periods can be significantly elevated. The duration of the disease varies from a few weeks to more than half a year, usually about 2 to 3 months. During the recovery phase, thyroid function and blood sedimentation may gradually return to normal in most patients, while a few patients may continue to have hypothyroidism or may relapse with subacute thyroiditis. Patients with subacute thyroiditis should go to the hospital and be treated under a doctor’s supervision.