What causes abnormal hearing?

Hearing abnormalities may be caused by genetic factors, environmental factors, disease factors, etc. Details are as follows:

1. Genetic factors

If there is deafness in parents or the mother is infected with viruses during pregnancy, it may lead to congenital hearing impairment and cause hearing abnormalities.

2. Environmental factors

If exposed to noisy environment for a long time, abnormal excitation of auditory nerve may cause hearing fatigue and hearing abnormalities.

3. Disease factors The

occurrence of external auditory canal diseases, such as contour deformity, stenosis, otitis media and other diseases, will cause obvious hearing abnormalities.