When a patient has facial palsy and ringing in the ears at the same time, it is important to consider that it is caused by a lesion in the pontocerebellar horn area, because in the pontocerebellar horn area there are facial nerve, auditory nerve, and posterior group of nerves such as the talocrural nerve, and when the pontocerebellar horn lesion occurs, it will lead to damage to these nerves. 1, patients with facial nerve damage will have symptoms of facial palsy, 2, and if the auditory nerve is damaged, patients will show tinnitus , hearing loss. Therefore, if facial palsy and ringing ears appear acutely, consider that it is caused by pontocerebellar horn hemorrhage or pontocerebellar horn infarction; 3. If the patient is gradually showing symptoms of facial palsy and ringing ears, consider that it is caused by pontocerebellar horn tumor. It is recommended that the patient promptly consult a hospital for a CT examination of the head to determine the nature of the disease, whether it is caused by cerebral hemorrhage, cerebral infarction or an occupying tumor in the pontocerebellar horn of the brain, so that treatment can be carried out in a timely manner.