Scissor gait of the lower limbs is a clinical manifestation of spastic bilateral lower limb paralysis in cerebral palsy. The scissor gait is due to the increased muscle tone of both lower limbs, especially the increased tension in the extensor muscles, and the lower limbs are over-extended when moving, and the legs are crossed in a scissor shape. What are the examination methods of cerebral palsy? 1.Electroencephalography (EEG) is the basis of the physiological function of the brain. The scope of application of EEG examination is not limited to neurological diseases, but has been widely used for monitoring of critical patients in various departments, anesthesia monitoring and psychological and behavioral research. In addition to routine EEG examination, there are long-term EEG monitoring, video EEG monitoring, sleep monitoring and digital computer analysis. 2.Posture and gait Posture and gait is one of the items of physical examination. Posture is the way the body presents itself. Abnormal posture is closely related to the health of the body and personal habits. Gait is the posture of the patient when walking. It is a complex motor process that requires a high degree of coordination of the nervous system and muscles, and involves many spinal reflexes and regulation of the brain and cerebellum, as well as the integrity of various postural reflexes and the mutual coordination of the sensory system and motor system. 3.Motor function examination Motor function can be broadly divided into two kinds of random and non-random movement. Random movement is managed by the cone bundle, and involuntary movement (involuntary movement) is managed by the extra-pyramidal system and cerebellar system. Motor function examination includes random movement and muscle strength, muscle tone, involuntary movement, ataxia, etc. 4, MRI MRI, also known as magnetic resonance imaging, is the use of nuclear magnetic resonance principle, through the applied gradient magnetic field detection of the emitted electromagnetic waves, according to which the internal structure of the object can be drawn into the image.