A visible esophageal vein is also commonly referred to as an esophageal variceal vein. Esophageal varices are side-branching circulations that develop as a result of increased resistance to blood flow due to portal hypertension from various causes. The main cause of esophageal varices is portal hypertension due to cirrhosis, and 50% of patients with cirrhosis develop esophageal varices. In addition, idiopathic portal hypertension and non-cirrhotic portal vein thrombosis may cause esophageal varices. Patients with cirrhosis should try to slow down the progress of cirrhosis. For esophageal varices, if they are mild, they must pay attention to regular checkups, and for more serious esophageal varices, they should be treated by lowering the portal pressure and undergo regular recheckups. If patients have esophageal veins showing, it is recommended to go to regular hospitals in time, to clarify the cause of the disease, and then carry out targeted treatment under the guidance of the doctor, in order to reduce the adverse effects of the disease.