Wake up in the morning stool is very fast can not hold it is very likely that the cause of abdominal cold, colitis, gastrointestinal dysfunction, and so on, may also be normal physiological defecation. 1. Abdominal cold: sleep without covers, sleep naked, etc. can lead to abdominal cold, abdominal cold easy to lead to get up in the morning stool anxious can not hold the situation. 2. Colitis: colitis in the irritable bowel syndrome is prone to this symptom, especially in the face of major things in the nervousness is prone to get up in the morning stool is very fast can not hold. 3. Gastrointestinal dysfunction: patients with gastrointestinal dysfunction are prone to this symptom, especially those who consume stimulating late-night snacks the night before are more likely to wake up in the morning with a very fast bowel movement. 4. Normal physiological defecation: when eating too much food, food stagnation in the intestinal tract, there will also be the next morning to get up in a hurry to hold the stool situation. If this symptom occurs for a long time, it is recommended to consult a doctor in time to identify the cause and treat the symptoms.