H65-H75: Diseases of middle ear and mastoid

Diseases of the middle ear and mastoid are a group of conditions that affect the middle part of the ear, known as the middle ear, and the mastoid process, a part of the temporal bone located in the skull. Various factors can lead to these illnesses, including infections due to bacteria or viruses, injury, and chronic conditions like allergies. Typical symptoms include ear pain, hearing loss, and sometimes discharge from the ear or a feeling of pressure or fullness in the ear. The progression of these diseases varies greatly depending on the cause and the individual, but they may cause temporary or permanent hearing loss if not properly managed. These illnesses primarily affect the auditory system, which includes the ears and the structures that allow us to hear. In some cases, if the disease spreads or becomes severe, it can lead to serious complications affecting other body systems.