According to statistics, the incidence of hearing impairment in normal newborns is 1 to 3 per 1,000, while the incidence of hearing impairment in newborns rescued from intensive care units can be as high as 2 to 4 percent. Internationally, the principle of early detection, early diagnosis and early intervention is consistently implemented for children with hearing loss. How to detect and prevent hearing loss in infants? Newborn hearing screening is an important means of early detection of hearing loss. The Ministry of Health stipulates that newborns can have a hearing screening at 2-7 days. Once the hearing screening fails, a definitive diagnosis should be made at 3 months of age. 3 years of age, especially before 1 year of age, is a critical period for the development of the child’s speech center. If a hearing impairment occurs before then, normal speech will not be acquired. Although newborn hearing screening has become extremely popular, there are still a few areas and families that do not have access to this screening. In addition to taking your child to the hospital for newborn hearing screening, you can also find out if your child’s hearing is abnormal by careful observation. Children can hear sounds as soon as they are born, although they will not make active response, but they can produce subconscious reflex activities under the stimulation of sound, such as avoiding his vision in his ears knocking objects to produce sound, he will make blinking, body shaking and other actions, therefore, to give the baby a sound environment, to buy some sound toys for infants, such as bells, pronunciation box, etc., and at the same time, the normal activities of family members Will produce a variety of sounds, such as walking sound, close and open the door sound, water sound, brushing sound, talking sound, etc., the outside world can also be transmitted to many sounds, such as the sound of a siren, the sound of thunder and so on. Parents should carefully observe the child’s reaction to these sounds, so that not only can early detection of whether the infant’s hearing is abnormal, at the same time, these sounds will stimulate the infant’s sense of hearing and promote the development of hearing. After four months, the child will have the ability to actively search for sound sources, and will use his eyes or turn his head to search for them when he hears a strong sound stimulus. In addition to buy some sound toys for the child to tease the child, play music for the child to see his reaction, the family can observe the child’s reaction by talking to the child, although at this time he can not answer, but the family, especially the mother’s affectionate words, will make the child feel the initial emotional exchanges. When the mother faces the child kindly said, smiled, and the baby talk, the baby will be staring at the mother’s face, will also smile, laugh, hand dance, etc., if there is no response, it shows that the child may have a hearing abnormality. After one year of age, the child will be able to understand some simple language, make some simple movements according to the language commands, and start babbling. Parents should carefully observe their child’s response to sound at each age. If the child’s response is not consistent with his or her age, it is important to suspect that the child has a hearing impairment, and to seek early medical attention for early diagnosis and intervention if this is suspected. Everything should be prevented before it is too late, so how can we prevent hearing impairment in infants? At present, the factors of congenital deafness in newborns are not yet fully understood, but it is found to be more closely related to the following risk factors: consanguineous marriage, family history of deafness, intrauterine infections (e.g., cytomegalovirus, rubella, toxoplasmosis, syphilis, etc.), preterm birth or very low birth weight (weighing less than 1,500 grams), multiple births, maternal drug abuse during pregnancy (e.g., gentamicin) and alcohol, maternal diabetes mellitus, chromosomal abnormalities, and so on. Some newborns are born without hearing loss, but can suffer from hearing impairment due to various acquired factors, such as meningitis, use of ototoxic drugs, severe jaundice, severe asphyxia, and other serious illnesses that result in prolonged stays in the neonatal care unit, all of which are high-risk factors for hearing impairment. Therefore, pregnant women should strengthen the awareness of personal hygiene and health care, so that the fetus can avoid adverse exposure, strengthen the health care during pregnancy and childbirth, and do a good job in preventing and controlling the diseases of the fetus and the newborn; parents should learn some knowledge about parenting, so as to avoid their children from falling ill and producing the high-risk factors of hearing impairment.