A newborn baby who does not pass the hearing test but the infant responds when we talk may be caused by false positives, for example, the ear may have cerumen, amniotic fluid, cerumen, and other conditions that cause interference with the test, or it may be related to a monaural hearing impairment but the hearing test fails to pass. If a newborn baby fails to pass the hearing test, but the baby reacts when adults talk to him/her, it may be due to cerumen, fetal fat, amniotic fluid and other interfering substances in the ear, resulting in a false-positive hearing test. You can wait until the baby is 42 days old before going to the hospital for a recheck, and do not need to be overly worried if he/she passes the test. In addition, some infants may have hearing impairment in one ear but fail the hearing screening test.