I can't shit all at once. What's going on?

Stool does not pull a complete is a kind of defecation endless symptoms, normal is due to gastrointestinal dysfunction intestinal motility caused by insufficient, but can not rule out the possibility of organic lesions, bacterial dysentery, amoebic enteropathy, chronic colitis, ulcerative colitis, Crohn's disease, tuberculous enteritis are likely to cause this symptom, in addition, a variety of intestinal space-occupying lesions are also caused by stool endless one of the main reasons.