Mr. Wang Wu and his wife the birth of the crystallization of love, so that the two mouths are both happy, but also a touch of sadness. Although after the doctor’s explanation, relieved the two families. After a few days, Mr. Wang Wu came up with a thought: his son has no ear on one side and no ear hole, will he not be able to hear the sound? Another, this kind of ear deformity, will there be brain problems? Could he be a fool? Thinking of these, I wanted to discuss with my wife, but when I saw my wife sleeping tiredly after labor and breastfeeding, I’d better not mention this to my wife, so that she won’t worry about it, and in case of post-partum depression, it’s still a problem. Why don’t you just hang up a doctor’s specialist number and ask her? So, Wang Wu hung up the number of the last consultation experts, to consult a plastic surgeon. Wang Wu voiced his concern: “You a few days ago in the obstetrics ward consultation, looked at my baby on one side without ears, I would like to ask, my son will not become a deaf ah?” The plastic surgeon answered him, “Definitely not a deaf one.” “With no pierced ears, he shouldn’t be able to hear, right?” Wang Wu asked in confusion. “Understand your guess.” The expert responded, “The general public would think that without ear piercings holes, sounds can’t be transmitted inside the ears, so the ears don’t have hearing. Actually, it is not. The affected side can still hear sounds and has hearing. This is because there are two pathways of hearing conduction in the human body, one is called ‘air conduction’ and the other is called ‘bone conduction’. Air conduction means, as the name suggests, that sound is conducted through the air, causing vibration of the periosteum, which drives vibration of the auditory ossicles chain in the middle ear, and then conducts to the inner ear, producing auditory nerve impulses. Bone conduction means that sound is conducted directly to the inner ear through the vibrations of the skull, causing auditory nerve impulses that produce hearing.” The expert took a sip of water and went on to explain, “Children with microtia often have poorly developed outer and middle ears, no external auditory canals, or ear holes as you call them, no periosteum, and the three auditory ossicles are incomplete, so the air conduction pathway is unable to conduct sound to the inner ear to produce hearing. However, patients with microtia generally have normal development of the inner ear, and the bone conduction pathway is normal, which means that the sound through the vibration of the skull bone can be conducted to the inner ear to produce hearing, only that this hearing is a little worse than normal hearing, about 40-60% of the normal hearing. Let’s say, the door of the room is like an ear hole, the room is like the inner ear, the door is open, listen to the sound outside the door is very clear, the door is closed, it does not mean that you can’t hear the sound outside the door, you can still hear the sound outside, but the sound is smaller, because the vibration of the wall will also be the sound conduction to the room. Besides, most patients with microtia have no ear on one side, the healthy ear has normal hearing, and the affected side is a little weaker, there is no obstacle to hearing sounds in daily life, and it does not affect learning and life.” “Oh, that’s good!” Wang Wu breathed a long sigh of relief and asked again, “Will there be any problem with the child’s intelligence?” The expert patiently answered, “Generally speaking, the intelligence of children with microtia is normal, I have experienced more than a thousand cases of microtia patients, and I haven’t come across a child with low intelligence, on the contrary, I have seen that all these children are very resourceful, as if God has closed a door and opened a window at the same time. Rigorously speaking, if the child is congenital stupidity, no ears is only one of the manifestations, then this kind of child is mentally retarded; if it is only a simple small ear deformity, the vast majority of this kind of child is mentally normal, don’t need to worry too much.” Listening to the expert’s explanation, Wang Wu’s heart is much more solid again, and he is glad that he didn’t tell his wife about his worries, so that she can have a good postnatal rest.