Gastric cardia dysplasia is a lack of muscle tone in the muscle that connects the esophagus to the stomach, and it usually occurs in children within one year of age, and it does not need to be treated because it develops completely with age. Cardia dysplasia mainly refers to the relaxation of the cardia, which connects the esophagus to the stomach, and cardia relaxation refers to the lack of muscle tone in the muscles connecting the esophagus to the stomach, which can cause food in the stomach to reflux into the esophagus. It is common in infants up to one year of age, and the common clinical symptom is vomiting, which can be manifested as projectile vomiting or vomiting after lying down. You can burp your baby after feeding to expel the air, and try not to lay your baby flat after feeding. The above can be done to relieve the symptoms of gastric cardia dysplasia. When gastric cardia dysplasia causes inflammation of the esophagus, surgery is needed. If your child’s gastric cardia dysplasia causes inflammation of the esophagus, it is recommended to go to a regular hospital for examination, to clarify the condition, and to make adjustments and treatments under the guidance of the doctor.