Definition Subacute thyroiditis, also known as viral thyroiditis, DeQuervain’s thyroiditis, granulomatous thyroiditis or giant cell thyroiditis, was first reported by DeQuervain in 1904. The disease has been increasing in recent years, with complex clinical changes, and can be misdiagnosed and missed, and is prone to recurrence, leading to a decline in health, but most patients can be cured. The disease can be characterized by seasonal or viral epidemics with population onset. It is called “gall pain” in Chinese medicine. The etiology has not been fully elucidated, but is generally thought to be related to viral infection. Diagnosis: 1. Painful, enlarged, and painful pressure on both sides of the laryngeal nodes, which may involve the back of the ear and head. 2, with fever. 3, History of upper respiratory tract infection 1-2 weeks before the onset of the disease. 4. Laboratory tests: elevated blood sedimentation; early elevated thyroid hormone levels, etc. Treatment: Western medicine treatment: 1, antipyretic and analgesic drugs; 2, hormones; 3, beta-blockers, etc. Chinese medicine treatment: dialectical and typing treatment.