Eating too hot food may trigger malignant tumors such as upper esophageal cancer. In addition, the area closely connected with the entrance of esophagus and pear-shaped fossa and upper esophagus may grow malignant tumors in the process of repeated damage and repair. Some patients prefer to eat hotter food, because of the risk, they should try to adjust the above bad habits. During the process of eating, food will reach the esophagus through the mouth, pharynx and larynx, and finally reach the stomach. Eating hot food may cause changes in the mucous membrane of the pharynx and upper esophagus. Long-term mucous membrane peeling and repair may cause local hyperplasia or adverse changes, which may lead to the appearance of malignant tumors.