Dizziness is also a common symptom in neurosurgical diseases. When patients with dizziness come to the clinic, regardless of the severity of the clinical manifestations, they should be treated as serious patients, pay great attention to them, and explain their condition to their families. Because of the rapid changes in the condition of these patients, especially in the case of infarction or hemorrhage in the vertebrobasilar system, the patient may come to the clinic with a clear consciousness and then turn around and become comatose and have dilated pupils, which may endanger the patient’s life. Case 1: A patient with episodes of dizziness and nausea and vomiting was asked to undergo cranial CT, but the patient and family refused and was forced to stay in the hospital for observation and given routine treatment such as dilation and improved circulation. The next morning, the subordinate physician said that the patient could not wake up, and urgently rechecked the head CT, suggesting large cerebellar infarction, compression of the fourth ventricle, obstructive hydrocephalus, and urgent lateral ventricular puncture and drainage, and finally the patient died of respiratory and cardiac arrest. Case 2: Male patient, 45 years old, came to the hospital with vertigo, nausea and vomiting for half an hour. On examination: BP 160/100mmHg, with a sharp expression, coarse nystagmus when gazing left and right, and poor finger-nose test. The rest of the patient had no obvious abnormal signs. The family was told to perform cranial CT examination. The family and the patient firmly refused, saying that some fluid infusion would be sufficient. I told the family that if they did not do it, please sign: refuse to do CT, all consequences and responsibility. The family and the patient had very strong opinions, and they were very noisy, but no one was willing to sign. After repeated persuasion, the CT examination was finally performed, and it showed a cerebellar hemorrhage, which required emergency surgery. Feelings: in the process of clinical work, many times do the examination, the results may be good, but a case of misdiagnosis may make you regret too late, adhere to their own principles and ideas is very important, and ultimately patients and families will understand our good intentions.