Injuries can occur to the thin skin lining of the ear canal – most often caused by an ear syringe, cotton bud, match stick or bobby-pin used to remove wax. Rarely a tree branch etc enters accidentally.
Any one who has a bleeding ear canal wound should have the wound inspected under a microscope. If the edges of a skin tear are laid back into position, healing is very fast and the skin layer heals to cover the skull bone entirely.
If ragged skin is left bundled up at the wound edges, the skull bone is exposed and will slowly dissolve – creating an ulcer like defect, which will require regular cleaning under the microscope.