小儿腹泻而引起的脱水是常见症状。腹泻时由于小肠粘膜病变而直接影响对水分的吸收,还由于肠腔内渗透压的改变而使血中部分水向肠腔转移,由大便排出,使机体丢失大量水分。现代医学研究认为,如果水分丢失超过体重的5%,就会造成脱水而使机体功能紊乱,危及生命。据调查表明,发展中国家每年都有300万儿童因腹泻脱水而死亡。 Dehydration caused by diarrhea in children is a common symptom. Diarrhea due to small intestinal mucosal lesions and directly affect the absorption of water, but also due to changes in the intestine cavity osmotic pressure so that part of the blood transferred to the intestine, discharged from the stool, the body loses a lot of water. Modern medical research suggests that if the water loss of more than 5% of body weight, it will cause dehydration and make the body dysfunction, life-threatening. According to the survey, 3 million children in developing countries die each year due to dehydration of diarrhea.