《黄帝内经·灵枢·师传》
肠中有热邪积滞，则排泄黄色如稀粥样的粪便，脐以下小腹部有发热的感觉。胃中有寒邪积滞，则出现腹胀。
胃中寒，则腹胀。肠中寒，则肠鸣飧泄。
When there is accumulation of heat pathogens in the intestine, patients will excrete yellow and porridge-like stools, and feel their lower abdomen below the navel hot. When there is accumulation of cold pathogens in the stomach, the abdomen will be distended.