Infectious myringitis is an infection of the eardrum. The eardrum is a thin membrane that separates the outer ear from the inner ear.
Infectious myringitis is an infection of the eardrum that usually follows a bacterial or viral ear infection. Vesicles, or small fluid-filled lesions, develop on the eardrum. The infection interferes with the normal function of the eardrum.
Myringitis is generally caused by an infection with a bacteria or virus. Sometimes, the infection starts in the eardrum. Most of the time, however, myringitis follows an infection in another part of the ear. Acute otitis media and swimmer''s ear can both lead to secondary myringitis. Upper respiratory infections, such as the flu or pneumonia , can predispose someone to ear infections.