牛奶蛋白过敏在婴儿及学令前的小孩是一个慢性腹泻常见的原因,健康小儿的发病率变化于0.3％～7％之间,而过敏者估计可达30％,诊断频率随可凝的指标而变化,在正确诊断成立以前一个小儿常因胃肠炎住院3～4次。何以一个小儿发生牛奶过敏而另一个不呢?原因不清。当然我们知道这样的病该有 Milk protein allergy in infants and pre-school children is a common cause of chronic diarrhea, the incidence of healthy children changes between 0.3% to 7%, while the estimated allergy was up to 30%, the diagnostic frequency with coagulation index The changes in the correct diagnosis before the establishment of a child often hospitalized for gastroenteritis 3 to 4 times. Why one child allergic to milk and the other not? The reason is unclear. Of course we know that such a disease should have