Cardia cancer is a special type of gastric cancer that occurs in the cardia of the stomach. It has its own clinical manifestations and diagnostic and therapeutic methods because of its own anatomical and histological characteristics. The symptoms are similar to those of esophageal cancer. The clinical manifestations of cardia cancer include bleeding, sometimes vomiting blood, blood in stool, persistent dull pain behind the sternum or scapular area in the back, obstruction, persistent mucus vomiting, and difficulty in swallowing. The main symptoms of cardia cancer in early stage are lack of obvious symptoms, such as posterior sternal distension or mild pain, which are not continuous but intermittent or aggravated after exertion and rapid eating. There is a foreign body sensation when swallowing food, and it is felt that the food passes slowly, stops or stutters. Fullness and slight pain in the fossa, subxiphoid or epigastric region, pronounced when eating dry and hard food, also occurring intermittently. It is often confused with peptic ulcer. In addition to similar to esophageal cancer, the symptoms of cardia cancer in the middle and late stages include heavy feeling in the upper abdomen, stomach pain, nausea, vomiting, dysphagia, etc. The body gradually loses weight, etc. The diagnosis of pancreatic cancer mainly includes barium meal x-ray and electronic gastroscopy. Early symptoms of pancreatic cancer are not obvious, regular physical examination can help to detect this disease.