Hearing loss in the right ear may be caused by sudden deafness, cerumen impaction and Meniere’s disease. 1. Sudden deafness: Sudden deafness can be caused by viral infection, hypercoagulable state, etc., which manifests itself as sudden hearing loss, with unilateral onset. 2. Cerumen impaction: excessive secretion of cerumen in the right ear can cause hearing loss by blocking the external auditory canal, and the patient can experience a sudden drop in hearing when it swells with water. 3. Meniere’s disease: the pathogenesis of this disease is the spasm of small arteries in the labyrinth, local hypoxia, increased permeability of capillary walls, resulting in excessive endolymph production, or due to the absorption obstacle of endolymphatic sacs, resulting in the accumulation of water in the membranous labyrinth. Early for low-frequency decline type sensorineural deafness, hearing fluctuation, episodes of hearing loss, intermittent period in the middle of the hearing can be partially or completely restored. There are many reasons for hearing loss in the ear, we should actively seek medical treatment, systematic examination, standardized treatment after clear diagnosis and etiology.