Stenosis of cardia is usually not self-healing. The cardia is located at the junction of the stomach and esophagus, and when there is prolonged esophagogastric reflux, the reflux of gastric acid into the esophagus stimulates the cardia, which can lead to inflammatory changes in the cardia mucosa, and even cardia erosion. When cardia erosion reaches a certain degree of severity, cardia stenosis can occur. Cardia stenosis is an irreversible change that cannot be self-healed and requires medical intervention. If the patient has cardia stenosis, it is recommended to go to the hospital in time to improve the gastroscopy and other auxiliary examinations, to clarify the degree of stenosis and the etiology of the disease, and to make timely intervention to avoid adverse effects.