Newborn Hearing Screening Newborn hearing screening is a screening test conducted for newborn babies. Most hearing screening is done before a newborn is discharged from the hospital. The test is painless and quick. It identifies babies with permanent hearing loss as early as possible to afford earliest possible intervention. Detecting and treating hearing loss early will help the baby’s language, learning and social development. By international measures, newborns should be screened by 1 month of age, complete audiology assessment by 3 months of age, and begin intervention by 6 months of age.