Appendicitis may cause loose and unformed stools, if this happens, please seek prompt medical treatment for reasonable and standardized treatment. The appendix is located between the cecum and the ileum, which may cause some related digestive symptoms, such as anorexia, nausea, vomiting, diarrhea and other conditions. Appendicitis may cause inflammation to spread, leading to irritation of the intestines and increased bowel activity, which can affect the digestion and absorption of food in the intestines, ultimately leading to loose and misshapen stools. In most cases, appendicitis should be treated with appendectomy at an early stage. Pre-operative antibiotics (e.g. cephalosporins, etc.) can help to prevent post-operative infections. The above should be done under the guidance of a medical professional. If the patient has a bowel irregularity, he should go to the hospital in time to avoid delaying his condition.