Head swaying is considered to be caused by idiopathic tremor, which is a relatively common movement disorder in the clinic, mainly manifested by postural and motor tremor of the hands or head. Head swaying is considered to be caused by idiopathic tremor, the general progress of this disease is relatively slow, usually does not affect the patient’s life and work, but the occurrence of tremor and the patient’s attention has a relationship, when the patient’s attention is more focused or in the more emotionally tense, the tremor will be more pronounced, and a small number of cases may be in the drinking of alcohol after the amplitude of the tremor becomes smaller or disappears. About 60% of people with idiopathic tremor have a family history of the condition, but there is no effective treatment for idiopathic tremor. Head bobbing from side to side should also be considered, such as Parkinson’s disease or drug-induced extrapyramidal reactions.