Symptoms of postoperative recurrence of acoustic neuroma, first of all, after tumor recurrence, the tumor will cause intracranial occupancy effect, resulting in the increase of intracranial pressure, and the patient will show symptoms such as headache, nausea, vomiting, etc. With the further increase of the tumor volume, the tumor will compress the circulatory pathway of the cerebrospinal fluid, resulting in obstructive hydrocephalus, and the patient’s intracranial pressure will be further increased significantly, and the patient will have obvious headache, nausea, vomiting, or even coma and other symptoms. The patient will have obvious headache, nausea, vomiting and even coma. Secondly, the tumor will also compress the blood vessels and nerves around the tumor as well as important brain tissues, such as trigeminal nerve, posterior group of cranial nerves, as well as the brainstem, cerebellum, etc., which will cause numbness of the face, loss of sensation, weakness of masticatory muscles, choking and coughing on drinking water, hoarseness of voice, difficulty in swallowing, loss of limb muscle strength, numbness, instability in walking, and other symptoms.