Signs and symptoms of GI bleeding can be either obvious (overt) or hidden (occult). Signs and symptoms depend on the location of the bleed, which can be anywhere on the GI tract, from where it starts — the mouth — to where it ends — the anus — and the rate of bleeding. GI GI Overt bleeding might show up as:  Vomiting blood, which might be red or might be dark brown and resemble coffee grounds in texture Black, tarry stool Rectal bleeding, usually in or with stool  With occult bleeding, you might have:  Lightheadedness Difficulty breathing Fainting Chest pain Abdominal pain  Symptoms of shock If your bleeding starts abruptly and progresses rapidly, you could go into shock. Signs and symptoms of shock include:  Drop in blood pressure Not urinating or urinating infrequently, in small amounts Rapid pulse Unconsciousness 
signs symptoms gi bleeding can obvious (overt) hidden (occult)  signs symptoms depend location bleed  can gi tract  starts — mouth — ends — anus — rate bleeding  gi gi overt bleeding show as:  vomiting blood  red dark brown resemble coffee grounds texture black  tarry stool rectal bleeding  stool  occult bleeding  have:  lightheadedness difficulty breathing fainting chest pain abdominal pain  symptoms shock bleeding starts abruptly progresses rapidly  shock  signs symptoms shock include:  drop blood pressure urinating urinating infrequently  small amounts rapid pulse unconsciousness 
gastrointestinal bleeding