Appendiceal mucinous carcinoma is usually in advanced stage before death, and the common symptoms in advanced stage include digestive tract symptoms, metastatic foci symptoms, malignant fluid manifestation and so on. 1. Digestive tract symptoms: patients may have severe and continuous abdominal pain, abdominal distension, large amount of abdominal fluid, abdominal distension, stopping of defecation, digestive bleeding, etc. Metastatic foci symptoms: multiple lymph nodes all over the body may be swollen, and malignant fluid may be present. 2. Symptoms of metastatic foci: there may be enlarged lymph nodes in many parts of the body, even involving many vital organs, and corresponding symptoms will appear. If the lungs are involved, dyspnea and wheezing will appear, and if the liver is involved, liver enlargement and pain in the liver area will appear. 3. Malignant fluid manifestation: appendiceal mucinous carcinoma will show obvious anemia, fatigue, loss of appetite and even systemic organ failure before death. It is suggested that patients with appendiceal mucinous carcinoma actively cooperate with treatment in order to prolong the survival time and improve the quality of life.