Symptoms: Early stage: Tinnitus, hearing loss. (There are many patients who are not taken seriously due to the lack of obvious symptoms, or who have visited ENT department and have not done cranial MRI and missed the diagnosis, small tumors may also be missed due to unclear display of cranial CT) Later stage: unstable walking, headache, nausea and vomiting, facial numbness and pain Confirmation tests: cranial MRI scan + enhancement, CT of internal auditory tract Treatment options: 1. The most thorough and effective method. For young patients, craniotomy is preferred. Those with large tumors and symptoms of increased intracranial pressure (headache, nausea and vomiting) must be treated by craniotomy. The risk of surgery is now very low and the mortality rate is less than 1%. The surgery is performed by making a 6 cm long incision behind the ear and a 3*4 cm bone flap on the skull and removing it. The surgery must be performed under a microscope, and the tumor can usually be completely removed and the flap put back in place after the surgery. The tumor can usually be completely removed and the flap can be put back in place after surgery. Injury to the facial nerve can result in crookedness of the corners of the mouth and incomplete eyelid closure, resulting in an ugly face. Ipsilateral deafness occurs after auditory nerve injury. The main difficulty is to preserve the function of the facial nerve, because the facial nerve and the auditory nerve pass through the internal auditory canal (a hole at the base of the skull) to the outside of the skull in parallel, and the larger the tumor is, the more obvious the compression on the facial nerve is, and the more likely the facial nerve will be damaged during surgery. Therefore, the smaller the tumor, the greater the chance of preserving the facial nerve function. At present, the proportion of preserved facial nerve after surgery in our hospital is more than 85%, and the preservation rate of less than 3cm is almost 100%. This kind of surgery ipsilateral hearing generally can not be preserved after surgery, but if the tumor is relatively small, there is also a chance to preserve the preoperative hearing, and even some patients hearing than the preoperative improvement. 2.Gamma knife treatment: No craniotomy is needed, the actual gamma radiation radiotherapy is needed only once. Radiotherapy head under local anesthesia installed a certain position of the head frame, radiation after focusing irradiation tumor, irradiation after the removal of the head frame, radiotherapy is over. It is to irradiate the tumor by gamma radiation to make the tumor gradually necrosis and shrink, stop the growth or slow down the growth. Gamma knife treatment can be considered for tumors less than 3 cm in diameter. But gamma knife can not guarantee the effectiveness of all patients, some tumors still grow after irradiation, or the center of the tumor cystic changes and increase in size or cerebral edema, resulting in the aggravation of symptoms, the patient must eventually also need to undergo craniotomy treatment. 3.Conservative treatment: For older patients with small tumors, no treatment can be done. Because auditory neuroma is a benign tumor, it usually grows slowly.