A feeling of blockage in the right ear is commonly due to the following three causes: First, sudden deafness in the right ear. When sudden deafness in the right ear occurs, the patient will experience blocked ears, tinnitus, hearing loss and stuffy ears, which are usually associated with insufficient blood supply to the auditory artery in the inner ear. Second, otitis media and tympanic membrane entrapment are the most likely causes. When otitis media occurs, patients will have ear pain, ear blockage, hearing loss, and serious symptoms such as pus flowing from the ear, and the trigger is usually rhinitis or a cold. Third, the outer ear canal cerumen blockage. The outer ear canal cerumen block has not been cleaned for a long time, and after washing hair, bathing or swimming, the water in the ear makes the cerumen expand and adhere to the eardrum causing the symptoms of ear blockage. So when the symptoms of ear blockage occur, the cause can be clarified through the above related symptoms, and if necessary, go to the hospital to check the cause.