Intestinal diseases usually do not cause clavicular lymph node enlargement, but may cause clavicular lymph node enlargement in the case of intestinal malignant tumors with distant lymphatic metastases. There are more types of intestinal diseases, among which inflammatory bowel diseases are more common, such as duodenal ulcer, ulcerative colitis, acute enteritis, appendicitis. As for inflammatory bowel diseases, they usually do not cause distant lymph node enlargement, such as clavicular lymph node enlargement. However, for intestinal malignant tumors, if the malignant tumor (e.g. colon cancer) can be metastasized through the lymphatic system, such as the lungs, liver, or clavicular lymph nodes, it can cause lymph node enlargement in the region. There are many reasons for enlarged lymph nodes in the clavicle, which need to be examined by a doctor before the cause can be clarified, and it is necessary to actively go to the hospital for diagnosis and treatment.