The appendix can also develop cancer. Appendiceal intestinal cancer, also known as appendiceal cancer, is a rare disease, and the most common diseases of the appendix are inflammatory diseases such as appendicitis. Appendix cancer can be categorized into carcinoid and adenocarcinoma. Appendiceal carcinoid tumors, now also known as neuroendocrine tumors. Adenocarcinoma of the appendix, pathologically adenocarcinoma is subdivided into colon type adenocarcinoma, which is similar to colon adenocarcinoma. In addition to colonic adenocarcinoma, there is also cystic adenocarcinoma, which morphologically appears as a cyst-like carcinoma that also originates from epithelial cells. Adenocarcinoma of the appendix, which is relatively rare in clinical practice, is usually found during appendiceal surgery or exploration. Adenocarcinoma of the appendix is more malignant and may also metastasize, in which cystic adenocarcinoma may also metastasize with intra-abdominal implants. When appendix cancer is metastatic from other tumors, it is more likely to be metastatic from ovarian cancer. There are no symptoms in early stage of appendix cancer, and some patients may have symptoms such as abdominal pain, fever and abdominal mass. Timely hospital consultation and standardized treatment.