The human ear was not intended to be regularly immersed in water, possibly resulting in acute outer ear disease, which may progress into a chronic form. This may be caused by cold water, bacteria, or chemicals. The condition is often aggravated by incorrect management and patient interference, e.g. earbuds. Acute otitis externa is usually caused by a bacteria called pseudomonas and produces the yellow/green discharge with pain and deafness.

Over time with repeated exposure to cold water, the bone of the deep outer ear canal starts to grow in an irregular pattern, gradually narrowing the opening to the drum. Wax, water, and infected material can get trapped behind these outgrowths again resulting in pain and deafness.

How Glue Ear Develops: