How to determine whether gastrointestinal bleeding

Digestive tract bleeding is a common clinical syndrome, common causes for digestive tract inflammation, vascular lesions, tumors, etc., can be divided into upper gastrointestinal bleeding, lower gastrointestinal bleeding. If the patient has hematemesis, bloody stools, unstable vital signs, irritability, cold limbs, oliguria, can be judged as gastrointestinal bleeding.