Whether an acoustic neuroma smaller than 1cm can be operated is related to the degree of hearing impairment, the location of tumor growth, and the impact of the tumor on the surrounding tissues and organs. If the growth location of an acoustic neuroma smaller than 1cm is in the inner ear canal or the tumor has a large impact on the surrounding tissues, or if there are obvious symptoms such as hearing loss and vertigo, surgery can be performed, but in other cases, surgery is generally not recommended. Auditory neuroma is a kind of central nerve sheath tumor, which belongs to benign tumors, the specific cause of the disease is not yet very clear, there may be no obvious symptoms in the early stage, with the development of the disease, due to the enlargement of the tumor will compress the surrounding area, which may cause dizziness, tinnitus, hearing loss, vertigo, facial paralysis and other symptoms. Treatment mainly includes surgical treatment, imaging follow-up observation and stereotactic radiosurgery and radiotherapy. Surgical treatment is aimed at removing the tumor and relieving the symptoms, and is mainly applicable to patients with significant tumor growth, failure of radiotherapy to control tumor growth, headache and ataxia symptoms due to tumor compression, or significant hearing loss and vertigo symptoms. If the acoustic neuroma smaller than 1cm has the above indications for surgery after diagnosed by the doctor, it can be treated by surgery. If an acoustic neuroma smaller than 1cm does not have the above indications for surgery, it can be followed up for observation or stereotactic radiation therapy to avoid further development of the disease. It is recommended that patients with acoustic neuroma should consult a doctor in time and choose the appropriate treatment according to the specific condition after diagnosis.