The shaking of the head from side to side is considered to be caused by idiopathic tremor, which is a relatively common clinical movement disorder, mainly manifested by postural and motor tremor of the hands or head. The swaying of the head is considered to be caused by idiopathic tremor, which generally progresses slowly and usually does not affect the patient’s life and work, but the occurrence of tremor is related to the patient’s attention, and the tremor will be more obvious when the patient concentrates or is emotionally stressed. About 60% of people with idiopathic tremor have a family history of the condition, but there is no effective treatment for idiopathic tremor. Shaking of the head from side to side should also be considered as Parkinson’s disease or drug-induced extrapyramidal reactions, etc.