There are two common clinical reasons why a patient may feel like he or she is walking to one side: 1) the side of the limb that he or she is walking to indicates that the strength of the limb on one side is worse than on the other side; and 2) the patient may be walking to one side if he or she has problems with his or her balance. Whichever of the above reasons, it means that the patient may have acute cerebrovascular disease. It is recommended to go to the neurology department or emergency department of the hospital in time to improve the examination and physical examination. According to the patient’s symptoms, cranial CT or cranial MRI examination to find out the cause, clear diagnosis and symptomatic treatment.