In the past, it was often thought that stomach cancer was a disease of the elderly and that younger people rarely got it. Stomach cancer usually appears in people between the ages of 40 and 50. Since it takes time for carcinogens to evolve into cancer, many cancers in adults appear after middle age. However, in clinical practice, there are often younger patients as well, so the appearance of related conditions in younger people should not be taken lightly. What are the signs and symptoms that may be the early symptoms of stomach cancer? Early stage gastric cancer patients may not show any significant signs, such as suffering from gastric ulcer with stomach pain, or feeling pain in the upper abdomen, as well as feeling full soon after eating due to the tumor overhead. It is worth noting that some patients may experience blood leakage from the stomach, “which may not necessarily feel stomach pain at this time, but may lead to signs of anemia, frequent dizziness and tiredness, and in some cases, unexplained weight loss”. In fact, many women have symptoms of anemia in their daily lives. How can we determine whether it is a sign of pathology occurring in the stomach? If a woman’s anemia has an obvious cause that can explain it, such as excessive menstrual flow, there is no need to go for a gastroscopy in this case. However, if there is no other clinically explainable reason, gastroscopy may be considered to determine if the stomach is diseased. Adjuvant treatment after surgery is important Endoscopy is needed for the diagnosis of gastric cancer, but many people are reluctant to undergo the examination because they are worried that it will be very painful to undergo gastroscopy. Generally, it is done in about 10 minutes, and the diameter of gastroscope is only about 1 cm, so people usually do not feel much discomfort. If the patient feels uncomfortable during the gastroscopy, local anesthesia or painless gastroscopy can be taken. If diagnosed with early gastric cancer and tumor cells have not yet metastasized, the most suitable method is to do surgery to remove the lesion. Surgery followed by radiotherapy and chemotherapy can improve the chances of survival, and early and middle stage gastric cancer can be basically cured. After removal of the stomach, it takes some time to adapt to it. At this time, the body’s absorption and digestion will be affected, so it is necessary to eat less and chew more, and swallow slowly. Although some patients will have no problem after surgery, some patients have to be reviewed regularly for recurrence. Some patients have high-risk factors, such as invasion of blood vessels and nerves, which may have the possibility of recurrence even if the tumor is removed cleanly. There are many high-risk factors for recurrence of gastric cancer. For example, before a patient receives surgical treatment, he or she is already a more advanced gastric cancer, and the cancer has penetrated the stomach wall and invaded the abdominal cavity and adjacent organs and tissues, and the tumor cannot be removed radically during surgery. In addition, the immunity of many gastric cancer patients has already decreased before surgery, i.e. the ability of immune cells in the body to recognize and kill cancer cells is reduced, which, coupled with the blow to the body’s resistance from surgical trauma and anesthesia, leads to even lower immunity of such patients after surgery. If patients’ immunity is not improved in time after surgery, patients will often have tumor recurrence even after surgery. After surgery, many patients are expected by their doctors to receive adjuvant therapy, but the patients’ response is almost always ‘it is better if the surgery is done or not’ and they do not understand the importance of adjuvant therapy. Nowadays, cancer treatment is all about multidisciplinary treatment (MDT model), which requires doctors from different disciplines to discuss and develop treatment plans and set up individualized treatment plans according to each patient’s different high-risk factors.