Auditory processing disorder (APD) refers to difficulties interpreting sounds and auditory information in the brain. It can affect 2-3% of children and 17-20% of adults, often being misdiagnosed as other conditions due to shared symptoms. Causes may include genetic factors, head trauma, or ear infections. People with APD struggle with tasks like paying attention, following directions, and processing oral information quickly. This can impact social development and success in school or work. Treatment focuses on auditory training exercises through computer programs or occupational therapy.