Gastric cancer can metastasize through the following ways: 1) direct infiltration: Gastric cancer can develop to infiltrate the surrounding organs, such as spleen, pancreas, etc.; 2) lymph node metastasis: metastasis to surrounding lymph nodes and distant lymph nodes; 3) blood dissemination: it can metastasize to liver, lung, bone, kidney, brain and other organs through blood, causing corresponding symptoms and manifestations; 4) implantation metastasis: gastric cancer can shed to abdominal cavity, large omentum and other Some of them can reach female ovaries, causing corresponding symptoms and ascites. Some patients with ascites visited the clinic and found that gastric cancer had metastasized to the abdominal cavity through examination; some may have other manifestations, such as occupying lesions and masses in the liver, and liver metastasis of gastric cancer was found through examination. Therefore, we should improve relevant examinations in time to make a comprehensive and accurate diagnosis and formulate the best treatment plan that meets the patient’s needs.