After eating, the posterior sternal choking feeling, feel the difficulty of swallowing food, blocked in the lower part of the chest, especially obvious when angry, emotional, sometimes can be self-relieved, sometimes need to drink a lot of water to send food down, often after eating regurgitation phenomenon, such symptoms, prompting attention – “cardia laxity “. The cardia, the part where the stomach connects with the esophagus. Loss of flaccidity of the cardia, also known as cardia spasm. The cause of achalasia of the cardia is currently unknown. Difficulty in swallowing is its prominent symptom. It usually starts slowly and worsens gradually over months or years, but can also occur suddenly, often triggered by emotional shock or irritating food. In the early stages of the disease, dysphagia can occur intermittently, sometimes lightly, and then become persistent. At the beginning, it is often difficult to swallow liquids or solids, and drinking water after meals can relieve the symptoms. Prolonged dysphagia leads to weight loss and emaciation. Loss of flaccidity tends to be a painless process, but some patients develop retrosternal pain early or late in the course of the disease. The diagnosis of achalasia requires barium meal imaging, gastroscopy, and esophageal manometry. The treatment of cardia achalasia mainly includes medication, endoscopic dilatation and surgery.