Patient: description of condition (onset time, main symptoms, hospital, etc.): my daughter was born on July 5, 2010. the first screening was done on August 8. the second was done on August 15. the third was done on August 17. the third screening was done on August 17. the first screening was done on August 15. the second screening was done on August 15. the third screening was done on August 17. the third screening was done on August 17. She was screened twice at Hengshan Maternity and Child Health Center and once at Nanyue Maternity and Child Health Center. The results: the first time both sides could not pass, the second time the right ear passed, the left ear could not pass, and the third time the left ear still could not pass What should I do now? Doctor: The incidence of hearing impairment in newborns is about 1‰-3‰, which is the highest incidence of several diseases that can be screened in newborns. Generally speaking, children who do not pass the initial screening have to be re-screened about 1 month or 42 days after delivery; those who still do not pass the re-screening have to be referred to the Children’s Hearing Diagnostic Center for diagnostic tests when they are 3 months old. Doctor: Since hearing screening is affected by a variety of factors, failure to pass the screening may not necessarily mean that the child has a hearing problem, it may be due to the newborn’s external ear canal and middle ear cavity with amniotic fluid, fetal fat and so on. With the movement of cartilage driven by breastfeeding, crying, etc., some of the residual material can be eliminated, so many children can successfully pass the screening at the full moon or 42 days after delivery. In addition, preterm and low-birth-weight babies may have immature hearing conduction and neurological development, and with the development of various organs in the body, they will also pass the 42-day postnatal re-screening. Therefore, there is no need to worry too much. You should observe your child’s reaction to various sounds, don’t let your child be exposed to noise, avoid colds and head injuries, and go to the hospital for review on time. Patient: Thank you, Dr. Chen. But my daughter is now one and a half months old. Why can’t she pass? Besides, I found that she reacts to external noise. Doctor: Don’t worry too much, when your child reaches three months, go to the Children’s Hearing Diagnostic Center to do a diagnostic examination, do the diagnostic otoacoustic emission and auditory brainstem response, and see the result. Now, you should observe your child’s response to various sounds, don’t let your child contact with noises, avoid catching colds and head injuries, and go to the hospital for rechecks on time.