There are many symptoms of terminal cancer before death~~Mainly it is a process in which multiple metastatic foci in the whole body cause dysfunction of multiple organs to the point of failure~~~What kind of system metastasis may cause dysfunction, and then finally one kind of metastasis turns into multiple organ failure, and then finally the whole body fails and dies~~~Typical symptoms include lung dysfunction, and the inability to ensure normal oxygen saturation after inhalation of oxygen. Lung problems~~ Low urine and hematuria are kidney problems~~ Vomiting, fatigue, poor appetite, anorexia, etc. are digestive system dysfunctions (typically caused by liver metastasis)~~~ Fever, fatigue, and poor mental health may be caused by multiorgan dysfunctions~~~ Epilepsy, headache, and dysfunctions of limbs are brain metastases caused by brain metastasis~~~ The probability of brain metastasis and bone metastasis is still higher than that of bone metastasis in cancer. The probability of lung cancer brain metastasis and bone metastasis is still relatively high. ~~~~ So the symptoms of advanced cancer vary greatly, but they are all caused by the dysfunction of one organ leading to the dysfunction of other organs, which ultimately leads to systemic multi-organ failure and thus causes the process of death.