Yes they could. Deafness is caused by damaged nerves (usually). This means that the physical ear and parts in the ear can still be damaged. read more
Sound is a pressure wave in the air. In extreme cases (that would still arguably be called “sound”), those pressure waves can rupture internal organs and cause injury all over your body. read more
Sounds you can't hear can still hurt your ears By Sarah C. P. Williams Sep. 30, 2014 , 7:15 PM A wind turbine, a roaring crowd at a football game, a jet engine running full throttle: Each of these things produces sound waves that are well below the frequencies humans can hear. read more