Colitis is commonly seen in clinical settings and generally does not cause back pain. The typical symptoms include abdominal discomfort and abnormal stools. It may manifest as discomfort in the left side of the abdomen, such as bloating and abdominal pain. Abnormal stools can be reflected by an increased frequency of defecation, generally more than two to three times. The character of the stool may change; for instance, a patient who previously suffered from constipation may now experience watery diarrhea or have stools that are relatively loose, but generally, there is no accompanying bloody stool, commonly referred to as stool with blood. Symptoms can also include a decrease in appetite, nausea, and vomiting. Common causes of back pain are generally considered to result from the urinary system or spinal pathology, such as ureteral stones, kidney stones, or herniated lumbar discs, etc. It is recommended for patients to undergo further examinations to clarify these conditions.