Parents of hearing-impaired infants and toddlers, for your pediatric hearing rehabilitation, there is only one word that is crucial: “early”, that is, early detection, early diagnosis, early rehabilitation. Newborn hearing screening requires early screening, early diagnosis and early rehabilitation, which is now popularly known as the “1-3-6 principle”: screening within one month, diagnosis within three months, and most critically, intervention and rehabilitation within six months. ”Early” has a clearer explanation for language learning and rehabilitation in deaf children. Children with normal hearing learn vocabulary more quickly than children with hearing loss. Children who use hearing devices (hearing aids or cochlear implants) early can acquire vocabulary earlier than children who use the devices later. In terms of specific vocabulary acquisition, children with normal hearing learn the first 100 words in less than 116 days on average from the first day of speaking the first word. Children with normal hearing took longer and slower to acquire words 1 through 50 than children with hearing loss, compared to children with hearing loss, who took longer and slower to acquire words 51 through 100. In other words, once they began to master words, it took less time to master the last 50 words than the first 50 words. Children with normal hearing acquired words 89 days earlier than children with hearing loss from the time they said their first phrase. However, once they had mastered 60 to 70 words, both children with hearing loss and children with normal hearing began to use words in the same way. The earlier a child with hearing loss wears a hearing aid or has a cochlear implant, the earlier they begin to learn words, and once they have mastered more than 50 words, it is relatively easy and faster for them to move on to the next level. To some extent, children with hearing loss are not less capable than normal children, but the key is to start learning “early”. We hope that all parents of deaf children must be aware of the “three early” principle of rehabilitation of deaf children, believe in science, and cooperate with medical units to do a good job of screening if parents have the conditions for newborn screening, and if parents do not have the conditions for screening, go to professional institutions to check and confirm the diagnosis if they find that their children are not sensitive to sound in their lives, and actively intervene after the diagnosis. If a hearing problem is diagnosed, the child can be rehabilitated with a hearing aid at 6 months of age, and a cochlear implant at 8 to 10 months of age for those with severe deafness. Parents should be clear about the benefits of early rehabilitation for their deaf children and not miss out on the best time for their children to recover!