When it comes to benign tumors, auditory neuroma should be considered as one kind of tumor. Although benign, it also causes some disturbance and harm to our life. For the treatment of auditory neuroma, the conventional surgery is difficult to remove. Therefore, early detection and treatment of auditory neuroma is necessary. So what are the early symptoms of auditory neuroma? Early symptoms of auditory neuroma 1. Abnormal trigeminal nerve function Pain deep inside the affected ear or mastoid, and numbness in the posterior wall of the external auditory canal. Usually the most common complaint of abnormal trigeminal nerve function is the sensory numbness or tingling sensation in the cheek and zygomatic bulge. Trigeminal symptoms are closely related to the size of the tumor: in patients with auditory neuroma less than 1cm in diameter, almost no abnormal trigeminal symptoms appear; on the contrary, 48% of patients with tumor diameter greater than 3cm have trigeminal symptoms, and patients with very large tumors may also have weakness or even atrophy of the masticatory muscles. In contrast, 48% of patients with tumor diameter greater than 3cm have trigeminal nerve symptoms. Hearing loss or hypoacusis is the most common finding in patients with auditory neuroma, and studies have shown that more than 95% of patients experience hearing loss during the course of their disease. The most common is progressive, high-frequency sensorineural hearing loss on the affected side. In addition, the rate of speech recognition loss is higher in patients with purely sensorineural hearing loss. Tinnitus is a common early symptom of auditory neuroma. Tinnitus is often persistent, high pitched, and unilateral, and usually occurs in conjunction with hearing loss due to nerve and blood vessel invasion. 4. Vertigo A few manifest as transient rotational vertigo with pressure in the ear, nausea and vomiting. Vestibular dysfunction, manifested by vertigo and balance disorders, occurs in more than 50% of patients. Vertigo is common in patients with very small auditory neuromas, while balance disorders are often seen in patients with very large auditory neuromas. The early symptoms of auditory neuroma are abnormal trigeminal nerve function, hearing loss and tinnitus and vertigo.