Fluid may remain in the middle ear (serous otitis, or middle ear
effusion) after your child has an ear infection. This may not cause symptoms,
or it may cause a muffling of sound, decreased hearing, and mild discomfort.
The body usually reabsorbs fluid behind the eardrum within 2 to 4 months, and
hearing returns to normal.
It may be hard to tell if a child has a hearing problem, especially
children age 3 and younger. The following may help you check your child’s
hearing at age: