Loose and unformed stools may be associated with poor eating habits, gastrointestinal disorders, colitis, colon cancer, etc. Loose and unformed stools are those that appear to be recurring, soft as mud, falling apart at the sight of water, or accompanied by indigestion. It may be caused by the following reasons: 1. Bad dietary habits: for example, frequent consumption of cold, spicy and other stimulating foods can lead to unshaped stools. 2. Gastrointestinal dysfunction: usually manifested as unformed and frequent stools, abdominal pain is rare. 3. Colitis: common types include inflammatory colitis, infectious colitis, ischemic colitis and so on. Inflammatory colitis is often manifested as diarrhea, mucous blood stools, abdominal pain. Infectious colitis is mainly accompanied by fever, loose and unformed stools, and abdominal pain. Ischemic colitis manifests as sudden abdominal cramps, blood in stool or even bloody diarrhea within 24 hours. 4. Colorectal cancer: Early stage of the disease is mainly due to the change of bowel habit, which causes unshaped stools. There are other reasons that may cause loose and unshapely stools. It is recommended to go to regular hospitals for consultation in time, so as to clarify the causes of the disease and carry out targeted treatment under the guidance of doctors.