DEAFNESS can also occur from birth, is called congenital deafness. Congenital deafness can occur due to factors that affect pregnancy or at birth.
This deafness may be partially deaf (hearing impaired) or total deafness (Deaf). Partial deafness is a state function of hearing loss but can still be used to communicate with or without the aid of hearing devices. Total deafness is a condition that such a disruption of auditory function that can not communicate even got pavement noise (amplification).
