Leeks are not digested directly pull out may be normal, such as with ice cream and other physiological factors; may also be abnormal, such as intestinal tuberculosis, peptic ulcer and other pathological factors. 1. Physiological reasons: eating leeks while eating chilled soda, ice cream, spicy hot pot, alcohol, strong tea, coffee and other stimulating foods, can stimulate the gastrointestinal mucosa and aggravate the burden on the gastrointestinal tract, resulting in leeks are not fully digested with fecal discharge. 2. Pathologic factors: (1) intestinal tuberculosis: Mycobacterium tuberculosis invades the intestinal tract, causing intestinal mucosal edema, congestion and ring ulcers, resulting in gastrointestinal symptoms such as abdominal distension, diarrhea, nausea, vomiting and other gastrointestinal symptoms, which can also be accompanied by low-grade fever, fatigue, anemia and other systemic symptoms. (2) peptic ulcer: excessive gastric acid secretion, taking aspirin and other non-steroidal anti-inflammatory drugs, as well as Helicobacter pylori infection, mental psychology and other factors can cause ulcerative defects in the gastric and (or) duodenal mucosa, causing stomach pain, acid reflux, diarrhea and other symptoms. Chives do not digest directly pull out, it is recommended to seek timely medical attention in order to clarify the diagnosis, under the guidance of the doctor for targeted treatment.