Tinnitus at night, usually consider neurotinnitus, ear canal foreign body or otitis media, pulsatile tinnitus and other conditions caused. 1. Neurogenic tinnitus: It is most common when the patient is under high work pressure and emotional anxiety, which may cause damage to the inner ear hair cells and vasospasm of the inner ear, thus inducing neurogenic tinnitus. 2. Foreign bodies in the ear canal: tinnitus induced by cerumen foreign bodies in the external ear canal, tinnitus can be alleviated to a certain extent after removing the cerumen foreign bodies. 3. Otitis media: when patients have secretory or purulent otitis media, the sound of air over water often occurs due to the accumulation of fluid in the middle ear, and may be accompanied by hearing loss, ear stuffiness and congestion and other symptoms, which often disappears after the tympanic membrane is perforated. Tinnitus at night in bed has more reasons, it is recommended that patients with this symptom seek medical attention in a timely manner, a clear diagnosis, early treatment.