Hypertonia generally refers to high muscle tone and is considered to be related to congenital cerebral palsy, Parkinson’s disease, cerebrovascular disease and other factors. 1. Congenital cerebral palsy: it usually occurs in young children and causes postural abnormality due to high muscle tone. Congenital cerebral palsy is also one of the major diseases that cause motor disability in children, which is accompanied by mental retardation and epilepsy, in addition to high muscle tone and motor disorder. 2. Parkinson’s disease: it usually occurs in middle-aged and old people, and is a common degenerative disease of the nervous system in the elderly, mainly related to the aging of the nervous system, environment and genetic factors, with symptoms such as slow movement, high muscle tone, hand tremor at rest and so on. 3. Cerebrovascular disease: For middle-aged and old people, if there is cerebrovascular disease, such as cerebral hemorrhage, etc., in the recovery period, there will often be high muscle tone, the reason is the cone beam lesion, that is, the motor nerve is damaged, and it is common to see hemiplegic patients with increased muscle tone when there is a curling up of the arm, which is precisely the cerebrovascular disease caused by the increase in muscle tone. It is recommended that patients should go to the hospital for consultation, and cooperate with the doctor to complete the relevant examinations to determine the cause before handling and treating.