宋代《小儿卫生总微论方》认为14岁以下当以小儿治。近代主张划分为以下六阶段,胎儿期、新生儿期、婴儿期、幼儿期、幼童期、儿童期。从7～12周岁为儿童,亦称学龄儿童期。小儿从初生至成年处于不断生长发育的过程中,无论在解剖、生理、病理、免疫等方面都以成人有所不同,其受病 The Song Dynasty “General Pediatric Pediatrics” that children under the age of 14 to rule. Modern ideas are divided into the following six stages, the fetus, the newborn, infancy, early childhood, childhood, childhood. From 7 to 12 years of age for children, also known as school-age children. Children from birth to adulthood in the process of continuous growth and development, regardless of anatomy, physiology, pathology, immune and other aspects of adults are different from the disease