A portion of patients with cardia bulge usually have no obvious symptoms in the early stages, while others may experience gastrointestinal symptoms such as upper abdominal discomfort. Cardia bulge is a sign of elevated mucosal tissue in the cardia area found under gastroscopy, and the diseases that lead to this gastric change may include gastric polyp, smooth muscle tumor, gastric mesenchymal tumor, gastric malignant tumor, etc. Some patients may have no obvious symptoms in the early stage because the mucosal irritation is not serious in the area. Some patients may have no obvious discomfort in the early stage because the bulge is not a serious irritation to the gastric mucosa. In some patients, due to the irritation of the gastric mucosal tissue, epigastric discomfort, nausea, vomiting, acid reflux, loss of appetite, belching (hiccups) and other symptoms may occur. If gastroscopy reveals cardia bulging, it is important to seek timely medical attention, targeted treatment under the guidance of the doctor or regular review, do not miss the condition.