Objective To study the etiology clinical features, treatment outcomes and prevention of esophageal submucosal hematoma caused by endoscopic injection sclerotherapy(EIS) of esophageal varices. Methods We retrospectively reviewed the clinical data of patients who were diagnosed with esophageal submucosal hematoma caused by EIS and treated in our hospital from Jan 2014 to July 2016. Five patients were analyzed including one patient receiving endoscopic gastrointestinal catheterization combined with medication,...