Suddenly walking to one side, the patient is advised to consult a neurologist, for walking skewed is usually seen in cerebrovascular diseases, especially posterior circulation cerebrovascular lesions, with cerebellar hemorrhage or infarction disease is more common. The cerebellum is generally in charge of balance, and when hemorrhage or ischemia occurs, dizziness and skewed walking can occur. In the case of cerebellar earthworms, anterior-posterior deviation can also occur. For walking to the affected side is a typical symptom of cerebellar deviation, which can be confirmed by C-T or MRI examination of the head. If it is cerebellar infarction, patients can be given symptomatic treatment such as antiplatelet aggregation, improving circulation, activating blood circulation and removing blood stasis. In case of cerebellar hemorrhage, treatment can be given according to the amount of hemorrhage, and surgery can be considered if the amount of hemorrhage is greater than 15 ml. If the bleeding volume is less than 15 ml, conservative treatment can be given. For walking obliquity, it is also recommended to consult an orthopedic surgeon. Clinically, there are patients with weakness of one lower limb due to lesions of the lumbar spine, and walking obliquity can also occur, but this case is relatively rare.