User:Swardeep

Causes of deafness:

The main causes of defness are heredity, accident and illness. In about 50% of all cases of deafness,genetic factors/heredity are probable cause of deafness. Environmental factors (accidents,illness auto toxic drugs.etc.) are responsible for deafness in many cases.Rubella or other viral infections contracted by the pregnant mother may deafen an unborn child. Hazards associated with process of birth. e.g.a cut-off in the oxygen supply may affect hearing. illness or infection may cause deafness in young children.Constant high noise level can cause progressive and eventually severe sensory neural hearing loss.Similarly. tumors,exposure to explosive sound. injury to skull or ear could lead to deafness. Swardeep Sansthan, an NGO which is working from many years for challenged people(Special). Organization presently running divisional residential school for Hearing Impaired,Mentally challenged children. One of its institute provide free facilities of logging and boarding.

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