The blood vomiting or hematemesis it can happen like result of an injury or of an illness of the mouth, gullet, of the esophagus, of the stomach or of the initial portion of the small intestine (duodenum).

Any hematemesis needs immediate urgent evaluation for a doctor, because the situation can go so far as to turn in very seriously if it does not talk each other. While one waits for help, support the knocked down side person without allowing the patient to be able to eat or drink nothing, even if he feels intense thirst.

One of the most frequent causes of hematemesis of gastric origin (of the stomach) is the called gastritis erosiva, for aspirin ingestion or other medicines for the pain (analgesics). For it, nobody who suffers from the stomach should take analgesics without knowledge of his doctor.