Causes of upper gastrointestinal bleeding include:

There are many causes of upper gastrointestinal bleeding. Upper gastrointestinal diseases such as peptic ulcer, esophageal cancer, acute and chronic gastritis, gastric cancer, acute gastric dilatation, duodenitis, etc. It can also be caused by portal hypertension caused by decompensation of liver cirrhosis, portal vein thrombosis, hepatic vein occlusion syndrome, etc.