The causes of dizziness, wanting to vomit, and unsteady walking in patients are mainly considered in the following aspects: 1. If dizziness, wanting to vomit, and unsteady walking appear all of a sudden, it is necessary to consider that they are caused by cerebellar lesions, such as acute cerebellar infarction or hemorrhage of the cerebellum, which lead to balance disorders and ataxia, and the patient will have violent dizziness, nausea, and wanting to vomit, and his body will be skewed to the side when he walks, and when he is serious, he will A drunken gait may occur. In this case, it is necessary to consult the hospital in time, improve the head CT, head magnetic resonance examination to clarify, and carry out the treatment for the cause; 2, if the patient is chronic dizziness, nausea, unsteady walking, which lasts for a long time and worsens in progress, it is necessary to consider that it is caused by cerebellar tumors and diseases of occupying nature.