Catheter balloon dilation is a treatment method that uses a common catheter balloon with different sizes of dilating balloons obtained by water injection to relieve swallowing disorders caused by cricopharyngeal muscle dystocia by mechanical expansion. Balloon dilatation can improve the coordination of swallowing movements and re-establish the neural pathway of swallowing reflexes, and is also effective in the treatment of uncoordinated swallowing movements, delayed swallowing reflexes and difficulty in starting swallowing. Indications】 (1) Patients with dysphagia due to delayed cricopharyngeal muscle loss during the transition from pharyngeal to esophageal phase; (2) esophageal stenosis due to postoperative scar growth of head and neck cancer; (3) stenosis due to tissue fibrosis caused by radiation treatment of the head and neck. Contraindications】 (1) within 3 weeks after esophageal surgery; (2) postoperative recurrence of esophageal cancer; (3) acute inflammatory phase of the esophagus; (4) uncontrolled hypertension or severe cardiopulmonary insufficiency; (5) history of esophageal varices. The treatment of cricopharyngeal dysphagia is currently carried out with catheter balloon dilation, which brings a new treatment technique for the treatment of swallowing disorders and allows patients to have their gastric tubes removed as soon as possible.