Diving Several Times a Day May Damage the Ear
Diving several times a day for several days causes damage to the structures of the ear, Brazilian research suggests.
Due to the condition known as middle ear squeeze, scuba diving has become one of the main causes of barotrauma. Barotrauma occurs to air spaces within your body when you move to or from a higher pressure environment.
However, when there was a surface interval of 11 hours between dives the damage did not occur.