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The infectious agent can be either fungal or bacterial. It can be triggered by exposure to dirty water or by mechanical damage due to overzealous cleaning. Otitis externa is an infection or inflammation of the ear canal between the eardrum and the outer ear. In some cases, CT scans may also be taken. overzealous cleaning of the ears, which can scratch the delicate tissues.Įar infections are diagnosed by physical examination and laboratory analysis of pus or discharge.failing to dry the outer ear properly after swimming or bathing.young age – babies and children are more prone to ear infections.smaller than average Eustachian tubes, or a blocked Eustachian tube.sudden changes in air pressure – such as during airline travel.Some of the many causes of ear infection and contributing risk factors include:

This can cause ear infections, mild deafness and an increased likelihood of a ruptured eardrum. If the Eustachian tube is blocked, secretions and associated bacteria build up inside the middle ear. Whenever we swallow, a small muscle flexes and opens the tube, allowing air pressure equalisation and the drainage of secretions. The walls of the Eustachian tube lie flat against each other to prevent the migration of bacteria or other germs into the ear from the nose and throat. This tube equalises air pressure inside the ear, and funnels secretions from the middle ear into the throat. The ear is connected to the back of the nose via the Eustachian tube. noises in the ear – such as buzzing or humming.

Children are particularly prone to middle ear infections (otitis media). The inner ear is where sounds are translated to electrical impulses and sent to the brain.Īny of these three parts can become infected by bacteria, fungi or viruses. The middle ear is separated from the outer ear by the eardrum and contains tiny bones that amplify sound. The outer ear includes the part you can see and the canal that leads to the eardrum.