If patients with advanced glioma can’t eat, can’t receive nutritional support and rehydration fluid, their survival time will be shorter, if they can receive nutritional support and rehydration fluid, their survival time will be prolonged, and the specific situation depends on the degree of the patient’s condition and individual constitution, and can’t be generalized. If a patient with advanced glioma cannot eat or receive nutritional support and rehydration fluid, the survival time will be relatively short, and long-term anemia, hypoproteinemia, severe wasting and other conditions may result, which will eventually endanger the patient’s life. However, if the patient can receive enteral nutrition or parenteral nutrition, such as amino acids, albumin, sugar, fat milk and other nutrients through the vein into the patient’s body, it may relatively prolong the survival time. It is difficult to give an accurate survival time, as it depends on the patient’s physical condition and the severity of the disease. Patients are advised to stay optimistic and actively cooperate with doctors for treatment.