Heart fossa pain is not necessarily an early symptom of gastric cancer, but may also be caused by angina pectoris, gastritis, gastric ulcer, reflux esophagitis and other reasons. The heart-mouth fossa belongs to the junction of chest and abdomen, and the pain is mostly related to stomach diseases. Stomach cancer may cause stomach pain, pain in the fossa of the heart, loss of appetite, nausea and vomiting, fullness after eating, weight loss, etc., while stomach diseases such as gastritis and gastric ulcer may also cause pain in the fossa of the heart. Besides, heart diseases such as angina pectoris may also cause pain and discomfort in the fossa of the heart. Therefore, pain in the fossa of the heart is not a specific symptom of stomach cancer, and patients should seek medical treatment from cardiology or gastroenterology department in time to clarify the cause and prevent the aggravation of the disease. Patients should maintain a healthy lifestyle, stay away from various harmful living environments, eat reasonably, work and rest regularly, and pay attention to emotional regulation to prevent the symptoms of heart soreness from becoming more serious.