Fever in advanced stage of cancer can be seen in cancerous fever or infection, which needs to be controlled in time to prolong the patient’s life. 1. Cancer fever: belonging to non-infectious fever, patients with advanced cancer can get fever due to the absorption of tumor necrotic material by the body and the thermogenic factor produced by the necrotic material, at this time, it is necessary to cool down the temperature in time and carry out anti-tumor treatment. 2. Infection: Due to surgery, radiotherapy, chemotherapy and other related therapeutic measures or the influence of their own diseases, patients with advanced cancer have lowered their immunity, and they are easily infected by bacteria, viruses and other pathogens, and their bodies have inflammatory reactions, which lead to fever, cough, sputum, chills and other symptoms, and they need to be actively treated with anti-infection therapy at this time. Patients with advanced cancer have fever, so they should find out the cause of fever in time, and treat the symptoms according to the cause.