An ear infection is an inflammation of the middle ear caused by bacteria. It occurs when fluid builds up behind the eardrum. Anyone can get an ear infection, but they are incredibly common in children. According to the National Institute on Deafness and Other Communication Disorders, nearly 75 percent of children will have at least one ear infection by their third birthday. In fact, ear infections account for the most common reason parents take their children to see a doctor. Visit our website: http://familyfirstpeds.com/