Drinking expired soybean milk is easy to have diarrhea, and in severe cases it will be complicated with enteritis, which is life-threatening.

Diarrhea is a common symptom, commonly known as "diarrhea", which means that the number of defecation is obviously more than usual, the stool is thin, the water is increased, the daily defecation volume exceeds 200g, or it contains undigested food or pus and mucus. Diarrhea is often accompanied by urgent defecation, anal discomfort, incontinence and other symptoms. Diarrhea can be divided into acute and chronic. Acute diarrhea occurs rapidly, and the course of disease is within 2 ~ 3 weeks. Chronic diarrhea refers to recurrent diarrhea with a course of more than two months or an intermittent period of 2-4 weeks.