Why might your dog be puking up blood?

General Causes

* Clotting disorders (coagulopathies) that cause bleeding into the gastrointestinal *

tract

* Gastrointestinal tract ulcerations, primarily of the stomach, esophagus or upper small intestine (duodenum)

* Bleeding tumors of the stomach, esophagus and upper small intestine

* Bleeding in the stomach or esophagus from the presence of foreign bodies

* Administration of medications that are irritating to the stomach