The nerve pain behind the ear against the neck may be caused by cervical spondylosis, intermediate neuralgia, falling pillow, occipital neuralgia and other reasons. 1. Cervical spondylosis: due to bad habits, posture and other reasons, patients with cervical spondylosis can make the cervical vertebrae part of the cervical spine is compressed, thus appearing behind the ear against the neck that the nerve a burst of pain phenomenon. 2. Intermediate neuralgia: intermediate neuralgia is also known as primary earache, some ear diseases such as trauma, otitis externa and other diseases can lead to primary earache. The disease occurs in the deep part of the ear and the back wall of the external auditory canal, and the patient will have a burst of pain in the nerve behind the ear by the neck. 3. Falling pillow: patients due to improper sleeping position, muscle injury and other reasons, resulting in excessive tension in the neck muscles, falling pillow, may appear behind the ear against the neck that the nerve a burst of pain. 4. Occipital neuralgia: the occipital nerve is located in the back of the occiput, the pain caused by extrusion can be radiated to the neck and outer ear, and there may be a burst of pain behind the ear against the neck nerve. When the patient appears behind the ear by the neck that nerve pain phenomenon, it is recommended to go to the hospital in a timely manner, diagnosed by a professional doctor, and give reasonable treatment.