Lying down and having ringing ears may be related to cerumen movement, or it may be caused by secretory otitis media or cervical spondylosis. 1. Cerumen movement: If there is too much cerumen in the ear, the change of head position when lying down may cause the cerumen to move and stick to the tympanic membrane, which may cause irritation to the tympanic membrane, resulting in ringing of the ears when lying down. 2. Secretory otitis media: this disease can lead to fluid accumulation in the tympanic chamber, when the patient’s body is lying down, it is likely to lead to the movement of the fluid, and the moving fluid is easy to irritate the tympanic membrane, which may cause ringing of the ears. 3. Cervical spondylosis: in patients with cervical disc herniation, the protruding cervical discs may cause compression of local blood vessels, causing insufficient blood supply to the brain. Especially when the patient’s body is lying down, due to the slowing down of blood flow, it will aggravate the insufficient blood supply to the brain, which may cause ringing in the ears. Lying down, ears ringing, may also be caused by other reasons, it is recommended to consult a doctor as soon as possible, after a clear diagnosis of the cause, to give targeted treatment.