Because the skin and tympanic membrane are soaked in water, coupled with the stimulation of cerumen (that is, the often said earwax), it is easy to cause otitis externa. If there is perforation of tympanic membrane, water entering the ear can cause otitis media recurrence.
People with external auditory canal inflammation, otitis media, cerumen embolism in external auditory canal, tympanic membrane perforation and other diseases must be corrected before swimming.