Hemiplegia, also known as hemiplegia, refers to a motor disorder of one side of the upper and lower limbs, facial muscles and the lower part of the tongue muscles, which is a common symptom of acute cerebrovascular disease. Although patients with mild hemiplegia can still move around, they tend to walk with the upper limbs flexed and the lower limbs straightened, and the paralyzed lower limbs take a step and make a half circle, which is a special walking posture called hemiplegic gait. This special walking posture is called hemiplegic gait. Severe cases often become bedridden and lose their ability to live. According to the degree of hemiplegia, it can be categorized into mild paralysis, incomplete paralysis and total paralysis. Light paralysis: manifested by weakening of muscle strength, muscle strength in grade 4-5, usually does not affect daily life, incomplete paralysis is heavier than light paralysis, the range is larger, muscle strength grade 2-4, total paralysis: muscle strength 0-1, paralyzed limbs are completely unable to move.