Dizziness and lightheadedness may appear in late stage of stomach cancer, but it is not the main clinical manifestation of late stage of stomach cancer, and it is not possible to determine whether the disease has developed to late stage of stomach cancer according to this symptom. Patients with advanced stomach cancer can show abdominal pain, abdominal discomfort, loss of appetite and weight loss. In addition, stomach cancer belongs to cancerous disease, anemia caused by cancer cell consumption can also be manifested as dizziness and vertigo. Therefore, it is not possible to judge that the disease has developed to the advanced stage based on dizziness and vertigo, and it is necessary to combine with pathological biopsy, gastroscopy, abdominal CT and other examinations to judge whether the disease has developed to the advanced stage.