Why some babies born with deaf?
Genetic Factors:
* Syndromic deafness: This is when deafness is part of a larger genetic syndrome, meaning it's linked to other physical characteristics or health conditions. Examples include Usher syndrome and Waardenburg syndrome.
* Non-syndromic deafness: This is deafness that occurs without other associated conditions. It can be caused by mutations in specific genes responsible for hearing development.
Prenatal Factors:
* Congenital CMV infection: Cytomegalovirus (CMV) is a common virus that can cause hearing loss in babies.
* Rubella: This viral infection can cause deafness, as well as other birth defects.
* Toxoplasmosis: This parasitic infection can also lead to hearing loss in infants.
* Other infections: Some other infections during pregnancy, such as syphilis, can also damage the developing ear.
* Medications: Certain medications taken during pregnancy can cause hearing loss, although this is rare.
* Premature birth: Babies born prematurely are more likely to have hearing loss.
* Low birth weight: Babies with low birth weight are also at increased risk for hearing loss.
Other Factors:
* Birth trauma: Injury to the ear during birth can sometimes lead to hearing loss.
* Meningitis: This infection can cause hearing loss in infants and children.
* Noise exposure: Exposure to loud noises, even before birth, can damage the delicate hearing structures.
It's important to note:
* Not all cases of deafness have a clear cause.
* Some cases of deafness can be mild and may not be detected until later in childhood.
* Early detection of hearing loss is crucial for optimal development.
If you have any concerns about your child's hearing, it's important to talk to your pediatrician. They can assess your child's hearing and recommend appropriate testing or treatment.
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