How can somebodys hearing be damaged?

Answer 1

either from old age or loud noises or if you have body fluids in your ears that really needs to be drained by a surgeon by them putting tubes in your ears or if you stick a Q-tip to deep in your ear while cleaning them then that could bust your eardrum.

Answer 2

Most usually by exposure to loud noises, although repeated and severe ear infections can also lead to permanent damage.

Answer 3

Standing next to a railway when a train passes by.