Cancer patients are more painful in the end. It is possible that the cause of death is wasting death due to severe malnutrition, or death due to hemorrhage caused by the tumor in the end, resulting in hemorrhagic shock. Most of them are caused by the widespread spread and metastasis of cancer at the end stage, such as the failure of important organs, like lung metastasis, which may lead to coughing, coughing and hemoptysis, and respiratory failure, which will directly lead to death; and liver metastasis with heavy symptoms such as abdominal distension, ascites and jaundice, which will also lead to liver failure and directly lead to death; and gastrointestinal metastasis, which will also lead to Patients cannot eat, and long-term malnutrition, hypoproteinemia, and severe anemia can lead to death.