what causes vomiting blood
Ingestion of rat poison may also be a cause of improper blood clotting. Hematemesis may also follow a traumatic incident, such as severe burns, heat stroke, major surgery, exposure to poisons from heavy metals, such as iron or lead, and snake bites. Exposure to toxic plants and pesticides may also cause vomiting of blood. Critically ill animals are at a higher risk for hematemesis.