The incidence of hearing disorders in children has been on the rise in recent years. The initial hearing screening of newborns from birth can partially detect hearing problems at birth, and the re-screening at 42 days can help in the early detection of hearing damage caused by hyperbilirubinemia/partial vestibular catheterization due to external forces on the head or high fever. The ability to detect hearing loss early also provides an excellent opportunity for early therapeutic intervention and reduces the onset of deafness. Even if the hearing impairment is so severe that treatment and hearing aids do not work, cochlear implant surgery can be performed left around the age of one, achieving deafness without deafness. This is the significance of universal hearing screening efforts. Most of the initial screening uses otoacoustic emission devices. The principle of otoacoustic emission elicitation is to elicit a signal from the cochlear nerve out of the external ear canal. Then, this signal goes through the middle ear and the external ear canal. If the child has a lot of cerumen in the ear canal, if there is fluid in the middle ear cavity, or if there is amniotic fluid in the outer ear canal, this can interfere with the elicitation of the signal. This is the reason why most children “don’t pass”. However, there are some children who are neurologically delayed, so no matter how clean the external ear canal is, it will not lead to normal otoacoustic emissions. So, we parents just know that the child is not passing, and we can’t figure out why, so we assume that there is something wrong with the child’s ear. So the whole family gets anxious and angry, and some mothers eat thick and greasy because they are sitting on the moon, and get angry because of this, and their milk is less, and their appetite is very poor, which affects the child’s nutrition, and the mother’s physical recovery. I ask parents to have a little common sense, but also a good mental state. The child’s reaction to sound when falling asleep is a shiver in the body or a blink of the eyelids, you watch carefully, is there? If so, don’t be too anxious and choose a time to come to a higher level hospital for a checkup, most of them can be excluded from hearing problems. It should be noted that children before 6 months of age do not have a clear ability to locate the source of sound, and they do not understand language.