Ulcerated gastric cancer is one of the more common malignant tumors of the digestive system, which has the following typical symptoms: firstly, the regularity of pain changes from pain after meals to continuous pain. Secondly, there are symptoms such as loss of appetite, weakness, obvious weight loss and rapid weight loss. Thirdly, black stool will appear, because ulcerative gastric cancer will erode small blood vessels, resulting in stomach bleeding and black stool. The fourth is the appearance of nausea and vomiting, which may vary from patient to patient in terms of clinical symptoms. If some of the above symptoms occur, it is recommended to go to hospital for gastroscopy and tissue biopsy for pathological diagnosis to confirm the diagnosis and take targeted treatment measures after the diagnosis.