Approximately six out of every 1000 children are born with some degree of hearing loss. The vast majority of these children will lead full, rewarding lives with the use of hearing aids. If your child does not appear to have reached one or more of these developmental milestones at the age indicated, talk to your family doctor about having his/her hearing tested.
| Age |
Developmental milestones |
| Infant less than 3 months |
|
| 3 months |
|
| 9 to 10 months |
|
| 1 year |
|
| 18 months |
|
| 2 years |
|
| 3-5 years |
|