小儿出血性疾病是儿科临床一类较为常见的疾病。出血原因不少、出血机制有的较为复杂 ,尤其在年幼小儿特别是早期新生儿则更复杂 ;即在婴幼儿亦属多见。为此 ,北京医科大学第一医院儿科曾于 1 986年 5月举办首次小儿出血性疾病初级学习班 ,以学习基础理论知识、实验检测原理及 Pediatric hemorrhagic disease is a common category of pediatric clinical disease. There are many causes of bleeding and some of the more complicated bleeding mechanisms, especially in young children, especially early infants; that is, infants and young children are also more common. To this end, the First Hospital of Beijing Medical University, Pediatrics was held in May 1986, the first infantile hemorrhagic disease in primary learning classes to learn the basic theoretical knowledge, experimental testing principles and