The main reasons to consider are esophageal cancer and gastroenteritis, etc. The main manifestation of esophageal cancer is progressive difficulty in swallowing. 1. Esophageal cancer: the main manifestation of esophageal cancer is progressive dysphagia, at first, patients can have normal diet, and then they can eat semi-fluid food slowly, and then they can only drink water and milk and other fluids, and they will have the feeling of gagging and choking after eating. 2. Gastroenteritis: when the patient suffers from gastroenteritis, there will be nausea, vomiting, bloating and other discomforts, at this time, the gastrointestinal peristalsis is slower, intestinal contents are not easy to flow, thus appearing in the stomach clogging, like choking feeling. In addition, the patient’s diet is too fast, eat something larger, will also appear blocked like choking feeling. If the patient keeps having this symptom which is difficult to be relieved, it is necessary to go to the hospital in time to find out the cause.