Generally speaking, unshaped and sticky stools with hidden pain in the right side of the abdomen are considered to be caused by acute and chronic enteritis, irritable bowel syndrome, colon cancer and so on. 1. Acute and chronic enteritis: refers to acute and chronic inflammation in the intestinal tract, which can be caused by bacteria, fungi, virus, etc. It often manifests as abdominal pain, bloating, diarrhea, nausea, vomiting and other symptoms, and it can be accompanied by electrolyte and acid-base balance disorders. 2. Irritable bowel syndrome (IBS): refers to the disease without organic changes, only intestinal function changes. It often manifests as abdominal distension, nausea, vomiting, diarrhea and other indigestion manifestations, and can be accompanied by anemia, emaciation and other malnutrition symptoms. 3. Colorectal cancer: refers to tumors occurring in the colon, and when it occurs in the right half of colon, it can cause hidden pain in the right side of abdomen, accompanied by emaciation, anemia, abdominal pain, abdominal distension, and changes in defecation habits and stool characteristics, such as unshaped and sticky stools. Unshaped and sticky stools with right-sided abdominal pain may also be caused by intestinal tuberculosis, intestinal polyps, etc. It is recommended that the patient consult a doctor for a clear diagnosis and targeted treatment under the guidance of the doctor.