<unk>  are very swollen veins in the walls of the lower part of the esophagus (the tube that connects your throat to your stomach) that begin to bleed.
Bleeding esophageal varices
Gastrointestinal varices
Lower gastrointestinal bleeding
Upper gastrointestinal bleeding
Esophageal varices
Oral ulcer
Peptic ulcer
Tropical ulcer