Diarrhea for two days in a row is very common in clinical practice, and the main causes are: 1, the vast majority of the causes are dietary problems; 2, there are problems with the structure of the diet, which may be more oil; 3, rare factors such as eating unclean, substandard food is also cause diarrhea. It is difficult to judge the severity of the disease by two consecutive days of diarrhea, but it also depends on the accompanying symptoms, such as if the patient has severe vomiting or fever or to go to the hospital immediately. If there are no accompanying symptoms, such as no discomfort in the abdomen, just paste-like stools, you can improve the diet or take oral probiotics to regulate the intestinal tract. If the patient has watery stools, more severe diarrhea more often, it is still necessary to go to the hospital to see a doctor for consultation.