People can survive without a stomach. In the case of stomach diseases such as stomach cancer, total gastrectomy may be necessary. After total gastrectomy, you can rely on the intestines to absorb nutrients, so you can survive without a stomach. However, the digestive function of patients after total gastrectomy is worse than that before total gastrectomy, and the lack of stomach may lead to iron-deficiency anemia, dumping syndrome, indigestion, etc. However, these conditions can be relieved with active treatment and dietary modifications (e.g., smaller meals, more frequent meals, etc.). Patients who need total gastrectomy should actively cooperate with the doctor’s treatment, and if they have any discomfort after the operation, they are recommended to go to the hospital for consultation.