一、儿童便秘的原因。1.排便习惯改变。如家里用坐式便池,学校为蹲式排便;怕羞不愿在校解决;早晨来不及,晚上作业做到很晚,太困,又顾不上排便等,次数多了就打乱排便习惯。一两天不排便,粪便积存直肠,水分被吸收形成干燥便,干便对肛门刺激性较小,孩子常感觉不到有便意。而上部肠 First, the reasons for constipation in children. 1. bowel habits change. Such as the home sitting on the toilet, the school squatting defecation; shy unwilling to school solution; morning too late, homework late, too sleepy, but also attend to defecation, the more the number disrupted the defecation habits. One or two days without defecation, the stool accumulates rectum, water is absorbed to form a dry stool, dry stool anal irritation is small, children often feel inconceivable. The upper intestine