In general, the feeling of blockage and choking in the pharynx and esophagus may be caused by pharyngitis, reflux esophagitis, esophageal cancer and other diseases. 1. Pharyngitis: it is the inflammation of pharyngeal mucosa and submucosal lymphatic tissue caused by bacteria, virus, fungus, environment and other factors. It is a non-specific inflammation of human pharynx, which can occur alone or in combination with other inflammation of upper respiratory tract. It can be manifested as discomfort in the pharynx, such as itching, pain, dryness, difficulty in swallowing and other symptoms, which may be accompanied by nausea, fever and other symptoms. 2. Reflux esophagitis: Long-term chronic acid reflux can cause damage to the esophageal mucosa, which triggers a series of discomforts in the esophagus, such as pain behind the sternum, heartburn and acid reflux, choking sensation and so on. 3. Esophageal cancer: it refers to malignant tumor of epithelial origin occurring in esophagus, which is related to long-term alcohol consumption, smoking, nitrosamine compounds, spicy stimulation and other bad dietary habits, and it can be manifested as choking sensation when eating, foreign body sensation at the back of the sternum, progressive swallowing difficulty, persistent pain at the back of the sternum, and obvious symptoms such as emaciation, fatigue and fever. Pharyngeal esophagus feeling blocked choking may also be caused by esophageal polyps, esophageal diverticulum and other reasons, it is recommended to consult a doctor in a timely manner to clarify the diagnosis, under the guidance of the doctor for targeted treatment.