Tinnitus but normal hearing may be related to late night or mental factors, otitis media, tissue compression or acoustic neuroma. 1. Tinnitus can occur when the human body stays up late, under stress, anxiety or insomnia, but hearing is generally normal, so it is recommended to pay attention to rest on time and ensure a good work and rest. 2. Localized compression: sometimes when lying on the side, can be due to compression of blood vessels on one side of the head, causing relative narrowing of blood vessels, blood flow through the pressure increases, speed up the flow rate, the ear to hear the sound of the blood flow, change posture after the disappearance of the sound of the blood flow, no hearing changes. 2. Otitis media: mostly caused by upper respiratory tract infection, can cause low-pitched intermittent tinnitus, if timely treatment, may not appear hearing loss. 3. Auditory neuroma has unilateral onset, and its clinical manifestations are related to the size and location of the tumor. Unilateral tinnitus can appear before hearing loss, and the hearing is normal at this time. If persistent tinnitus occurs, it is recommended to consult a doctor in time, complete the hearing examination, clarify the cause of the disease, and then carry out targeted treatment.