What Are Common Causes of an Ear Infection with Pus?
Pus is a thick fluid, often yellowish in color, which contains immune system cells and damaged tissue, and is typically found where an infection is located. In the case of an ear infection with pus, the most common cause is bacteria infecting the outer passage of the ear, also known as the external auditory canal. For pus to be visible, the infection is more likely to be located on the outer side of the eardrum, although occasionally an infection of the middle ear can burst the eardrum and pus will escape. Some people have a tendency to develop recurring ear infections, and over-enthusiastic cleaning of the ears can irritate the canal and make infection more likely. A humid climate, skin diseases such as eczema, and swimming regularly can all increase the risk of an ear infection with pus.
