For most people with mild hearing impairment, in a quiet environment, face-to-face communication with others at a short distance is generally not aware of their hearing impairment, this is because when they cannot hear the whispering voice of others, the person with hearing impairment will judge the meaning of others through oral aids or linking the statements before and after based on their previous hearing experience, but if the speaker is more whispering or turning his back to the person with mild hearing impairment, the person with hearing impairment may not hear a word and thus miss or misunderstand the meaning. However, if the speaker speaks more quietly or with his or her back to the person with mild hearing loss, the person may not hear a word and may miss or misunderstand the meaning of the speaker. Some adults with mild hearing loss do not usually think that they have a mild hearing loss, but often think that the speaker’s voice is too low, or that the distance is too far, the background is too noisy, or even that the speaker is spitting out words. For children, infants and toddlers with mild hearing impairment, parents also tend to take the attitude of not paying attention to mild hearing impairment, or even think that the child is too young and unresponsive, or think that when the child grows up, he or she will be able to hear like a hearing person. However, China Hearing Online tells you that children are like a blank sheet of paper, with no auditory experience at all, and their speech development starts from zero; they need a better hearing foundation to be able to learn language better. Even a mild hearing impairment can affect a child’s speech development and eventually lead to low vocabulary or late speech, slurred spelling or incomprehension of the speaker’s meaning, etc. Case Study The Chinese Journal of Hearing and Speech Rehabilitation Science once reported a case of a girl with a mild congenital hearing impairment who was not allowed to go to kindergarten because her family thought she was shy due to her small voice growing up, and only found out that she had a hearing problem at the age of 5.5 during a medical examination before she started school. When people asked her “What’s your name, baby”, she replied “What’s your name, baby”, which means she heard the question, but did not understand the meaning of the question. According to her mother, the child can generally speak simple words and sing children’s songs. However, when people talk to her, they find that she cannot pronounce the sounds with “z, c, s” or “zh, ch, sh” or that these sounds are particularly small and sound like they are swallowed. If you are not a professional, you will not pay attention to these details. From her audiogram, the average hearing thresholds of 500, 1000, 2000, and 4000 Hz were calculated to be mild, however, a careful analysis of the hearing thresholds of each frequency showed that her low frequency hearing of 500 and 1000 Hz was 30-35 dB, which was basically close to normal, while her high frequency hearing of 2000 and 4000 Hz was 50-55 dB, which was in the range of moderate hearing loss range. The child’s low-frequency hearing was good, and she could basically hear general conversations, while her high-frequency hearing was not good, which prevented her from receiving high-frequency information. She hears words mostly out of context and incomplete, and over time, the child develops a willingness to repeat what others are saying and not bother with the meaning. For children with mild hearing impairment who go to the hospital through the non-newborn hearing screening route, the average age at which the family discovers the hearing impairment is about 36 months. Some parents, even if they discover their child’s hearing problem, do not bring their child to the hospital until after six months or a year because of the lack of attention to mild hearing impairment. In contrast, nowadays, through newborn hearing screening, children who fail to pass the hearing screening usually receive diagnostic audiological examinations around 3 months old, at which time the child’s hearing status can be known. However, for mild hearing impairment, most parents think that “the child can hear the adults and learn to speak, and even sing, so there should be no big problem”, so they delay to give the child hearing aids, and do not let the child receive auditory and speech rehabilitation training, resulting in the child to 4 or 5 years old, compared with children of the same age When the child is 4 or 5 years old, he or she will have a significant speech impairment compared to children of the same age. At this time, children with mild hearing impairment in the process of growth and development, already unknowingly appear speech and language development disorders, but parents do not notice the gap with children of the same age. China Hearing Online sincerely hopes that parents will pay attention to their children’s mild hearing problems, listen carefully to the advice of audiologists, and let their children receive professional hearing rehabilitation guidance to maximize their children’s speech communication level.