Ear back is hearing loss, there are many reasons for hearing loss, cerumen embolism can lead to hearing loss, tympanic membrane perforation can also lead to hearing loss, in addition, ageing can also lead to neurodeafness, the causes are different, the treatment is also different. 1. Cerumen impaction: Cerumen is the secretion secreted by cerumen glands in the cartilaginous part of the external auditory canal. Excessive secretion of cerumen glands or impaired cerumen discharge can lead to cerumen impaction, which can affect the conduction of sound waves through the outer ear to the tympanic membrane, and thus lead to ear dorsum. The treatment is only to soften the cerumen by using sodium bicarbonate solution or liquid paraffin, and then rinse out the cerumen or remove the cerumen with an instrument. 2. Tympanic membrane perforation: otitis media, trauma and other diseases can lead to tympanic membrane perforation, when the tympanic membrane perforation will appear the symptoms of hearing loss, treatment, for the tympanic membrane perforation caused by otitis media, you can under the guidance of the doctor to use cefuroxime, erythromycin, and other drugs for anti-infection treatment. For perforated eardrum caused by trauma, you can first observe whether the eardrum can heal on its own, if it can’t heal on its own, it can also be treated by tympanic membrane patch, tympanoplasty and other surgeries. 3. Neurological deafness: caused by lesions in the auditory nervous system, which can be treated with medication, hearing aid fitting, cochlear implantation and other treatment options under the guidance of a doctor. In addition to the above diseases, other factors can also lead to back of the ear, it is recommended to consult a doctor in time to deal with it.