Unshaped and loose stools may be caused by dietary factors, intestinal flora imbalance, enteritis, intestinal tumors and other reasons. 1. Dietary factors: eating spicy, stimulating food or greasy food can lead to increased gastrointestinal motility and unformed, loose stools, which can be gradually relieved after adjusting the dietary structure. 2. Intestinal flora imbalance: the harmful bacteria in the intestinal tract multiply more and lead to intestinal flora disorders, which can be manifested as unshaped stools in loose shape, farting and other symptoms. 3. Enteritis: for example, viral enteritis, ulcerative enteritis, etc., the intestinal mucosa is in the state of edema and inflammation, so the number of stools is more frequent and the stools are not formed in loose shape, and some of the patients may be accompanied by abdominal pain, fever and other symptoms. 4. Intestinal tumor: for example, colon cancer, rectal cancer, due to the infiltration of cancer cells into local tissues, resulting in frequent stools, unshaped stools, accompanied by anemia, emaciation and other symptoms. If the stool does not form loose shape for a long time, it is recommended to consult doctor in time to find out the cause of the disease and follow the doctor’s instruction for treatment.