In fact, some problems can be pinpointed at birth. That's why the state of Ohio instituted mandatory "Universal Newborn Hearing Screening" in 2004.

In the first year of testing, almost five percent did not pass. Even if a child passes that first test, it doesn't mean they won't have problems down the road.

"We're noticing more and more children that come, that have passed the screening that now have a problem," says Audiologist Lisa Kleinline.

Kleinline says hearing loss can be progressive and many times, changes can go unnoticed.

So, in Jack's case, experts begin by testing his ears, from testing how his ears are made to how well his ears work.

Once a child recognizes the direction of sound, they are rewarded with a visual stimulation.

Jack passed this test, but experts say it's important to continue to monitor development. So, Jack and his mom, Heather, will continue to practice language and keep an eye out on those ears.

Some of the causes for hearing loss include high fevers, jaundice, prenatal infections and repeated ear infections.

Doctors say one sign parents should watch for is to make sure that you get a response when talking to a child from another room.

By Heather Pick
http://www.10tv.com/Global/story.asp?S=4513910&nav=LUESMuat