Gastric cardia pain is related to cardia tear, esophagitis, cardia fundus cancer, etc. The cardia is located between the esophagus and the stomach, which can inhibit acid reflux and is an important part of the digestive tract. Some people will experience nausea and vomiting when suffering from stomach diseases, and severe nausea and vomiting will lead to tearing of the cardia of the stomach, which will soon lead to pain in the cardia area of the stomach, and some people will also be accompanied by vomiting blood and black stools. Esophagitis is caused by excessive gastric acid refluxing into the esophagus and violating the esophageal mucous membrane. During the attack of esophagitis, not only will there be discomfort in the chest bone area, but also pain in the cardia area due to the invasion of gastric acid. Cardia fundus cancer is a malignant tumor disease, which mainly develops in the cardia area and causes pain in the cardia area due to the invasion of the surrounding tissues by the cancer cells.