There are more factors affecting the 5-year survival rate after surgery for duodenal cancer, including pathological grading, lymph node metastasis, surgical resection method, etc. In general, the 5-year survival rate after surgery for duodenal cancer is around 30%. The more serious the pathological grading and the presence of lymph node metastasis, the lower the postoperative 5-year survival rate. In addition, the way of surgical resection also affects the 5-year survival rate. If the situation is better, the 5-year survival rate after surgery is around 30%, otherwise it will be lower. Duodenal cancer is a malignant tumor originated from duodenal tissue, and its incidence rate is at a lower level among gastrointestinal malignant tumors. There are mostly no obvious symptoms in the early clinical stage, and symptoms such as epigastric pain, abdominal distension, nausea and vomiting may appear in the late stage. If the diagnosis is confirmed, it is recommended to actively cooperate with the doctor’s treatment. Adverse reactions such as vomiting and hair loss may occur during the treatment, so please be prepared.