“Doctor, will the pediatrician have pain after surgery?” This is often encountered in the clinical work of parents ask questions, and the smaller the child the more parents ask, in fact, even the smallest child will hurt, the 25th week of pregnancy when the pain receptors began to develop, before birth, pain receptors have been widely distributed throughout the body, before the birth of the child has been able to fully perceive the pain, that is, in the mother’s womb, the child and the mother has been ” The child and the mother have already “shared the pain” when the child is still in the mother’s womb. That’s why even if a child has an operation, even at a young age, he will still be in pain! Now the medical development advocate comfort medical, pediatric postoperative pain treatment is developing rapidly, especially in professional children’s hospitals, most children will choose postoperative analgesia, this is because the children’s nervous system is relatively naive compared to adults, is still in the developmental stage, the pain can lead to postoperative pain allergy for several months, the serious impact on the development of the nervous system; furthermore, the pain puts the body in a state of stress, affecting the postoperative recovery; pain at the same time also leads to pain, the pain is not only the pain, but also the pain, the pain, the pain, the pain, the pain, the pain. It affects the postoperative recovery; pain also causes anxiety in both the pediatrician and the parents. Therefore, necessary postoperative analgesia is very necessary for pediatric postoperative!