Vomiting in esophageal cancer patients may be caused by factors such as local cancerous tissue damaging smooth muscle or causing esophageal narrowing. If the local tumor tissue of esophageal cancer continues to grow downward and damages the smooth muscle of esophagus, the normal swallowing function of esophagus will be affected, and sometimes vomiting symptoms will appear. Tumor tissues of esophageal cancer will keep growing, which may cause narrowing of esophagus, and in serious cases, it may also cause local obstruction, which will also cause patients to vomit. Patients with esophageal cancer often have vomiting symptoms, which will affect normal diet. They need timely surgery to remove local cancerous tissues, and if necessary, they need regular radiotherapy and chemotherapy, and after regular treatment under doctor’s guidance, the symptoms of vomiting can be relieved.