肠原性紫绀症是由于食用某些变质蔬菜引起的一种高铁血红蛋白症。能够引起此症的蔬菜类有小白菜、韭菜、菠菜及一些野菜。这些菜中含有丰富的硝酸盐,一旦变质,在硝酸盐还原菌的作用下,硝酸盐会还原成亚硝酸盐,食用后就会中毒。肠道内过多的亚硝酸盐被吸收入血液后,会将正常的血红蛋白氧化成高铁血红蛋白,血红 Enteric cyanosis is due to eating certain metamorphic vegetables caused by methemoglobinemia. Can cause this disease vegetables cabbage, leeks, spinach and some wild plants. These dishes are rich in nitrate, once metamorphosed, in the role of nitrate-reducing bacteria, nitrate will be reduced to nitrite, after eating poisoning. Intestinal excessive nitrite was absorbed into the bloodstream, the normal hemoglobin will be oxidized to methemoglobin, hemoglobin