随着我国计划生育和保健工作的逐步深入,儿童的体格与智能发育已愈来愈引起重视.在日常临诊工作中,因生长落后(矮小身材)就诊者已日渐增多,临床表现有矮身材的各种疾患可达百余种,其中由宫内生长发育迟缓(小于胎龄儿)所导致者已引起国内外学者的日益关注. With the gradual deepening of family planning and health care work in our country, physical and mental development of children has drawn more and more attention.In the routine clinical work, the number of patients who are out of shape due to growing up (short stature) has been gradually increasing, and the clinical manifestations are short stature Of all kinds of diseases up to more than 100 species, of which caused by intrauterine growth retardation (less than gestational age children) has attracted the growing attention of scholars at home and abroad.