Otitis - an inflammation of an ear. Distinguish an external, average and internal otitis.

External otitis. There are two forms - limited (a furuncle of external acoustical passage) and diffusive. The limited external otitis results from introduction of an infection (more often a staphilococcus) in hair follicles and sebaceous glands of fibrously-хрящевого department of external acoustical passage that promoted by fine traumas at manipulation in an ear matches, etc. Furuncles of external acoustical passage arise at the faces, suffering a diabetes mellitis, a gout, a hypovitaminosis is more often. Process can sometimes extend on nearby aural fat. Diffusive (diffuse) external otitis develops mainly at a chronic purulent average otitis owing to introduction in a skin and a hypodermic fatty tissue of acoustical passage of various bacteria, and also mushrooms. Inflammatory process quite often extends and on a tympanic membrane.