Vomiting Blood (Hematemesis)

What is Vomiting blood (hematemesis)?

Vomiting blood, medically termed hematemesis, refers to the expulsion of fresh or partially digested blood through the mouth. The blood may appear bright red, coffee‑ground–like, or mixed with gastric contents. Hematemesis is a sign that bleeding is occurring somewhere in the upper gastrointestinal (GI) tract—typically the esophagus, stomach, or the first part of the small intestine (duodenum).

Because the upper GI tract is highly vascular, even small lesions can produce noticeable bleeding. Prompt evaluation is essential, as massive hemorrhage can lead to shock, organ failure, and death.

Common Causes

More than a dozen conditions can cause upper GI bleeding. The most frequent culprits include:

• Peptic ulcer disease (PUD) – erosion of the stomach or duodenal lining, often linked to Helicobacter pylori infection or non‑steroidal anti‑inflammatory drugs (NSAIDs).
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• Gastric or esophageal varices – dilated veins that develop in patients with chronic liver disease (cirrhosis) and can rupture catastrophically.
• Esophagitis – inflammation of the esophagus caused by acid reflux (GERD), infections, or pill‑induced injury.
• Mallory‑Weiss tear – a linear mucosal laceration at the gastro‑esophageal junction, usually after forceful vomiting or retching.
• Gastric cancer – malignant tumors can ulcerate and bleed.
• Dieulafoy lesion – an abnormally large submucosal artery that erodes through the mucosa without an ulcer.
• Upper GI infections – e.g., cytomegalovirus (CMV) or herpes simplex virus (HSV) in immunocompromised hosts.
• Erosive gastritis – diffuse inflammation of the stomach lining, often from alcohol, NSAIDs, or critical illness.
• Vascular malformations (angiodysplasia) – fragile, dilated vessels that can bleed intermittently.
• Bleeding disorders – coagulopathies (e.g., liver failure, warfarin, direct oral anticoagulants) that predispose to mucosal hemorrhage.

Associated Symptoms

Patients with hematemesis often report additional signs that help pinpoint the source and severity of bleeding:

• Abdominal or chest pain – may suggest ulcer perforation, gastritis, or esophageal injury.
• Melena (black, tarry stools) – indicates blood that has traveled through the intestines.
• Hematemesis with “coffee‑ground” appearance – denotes partially digested blood, often from slower bleeding.
• Dizziness, light‑headedness, or syncope – signs of hypovolemia.
• Shortness of breath or rapid heartbeat – compensatory response to blood loss.
• Fever or chills – may point to infection (e.g., gastritis, ulcer with secondary infection).
• Weight loss, loss of appetite, or early satiety – chronic conditions such as cancer or severe ulcer disease.

When to See a Doctor

Hematemesis is never “normal.” Seek medical attention promptly if you notice any of the following:

• Vomiting any amount of bright red blood.
• Vomiting material that looks like coffee grounds.
• Accompanying symptoms of light‑headedness, fainting, or rapid pulse.
• Persistent vomiting (more than one episode) or continued bleeding.
• Signs of shock: pale skin, cold clammy extremities, confusion.
• History of liver disease, recent heavy alcohol use, or known peptic ulcer disease.
• Recent use of blood thinners (warfarin, apixaban, clopidogrel) or NSAIDs.

Diagnosis

Evaluation begins with a rapid clinical assessment followed by targeted investigations.

Initial Assessment

• Vital signs – blood pressure, heart rate, respiratory rate, oxygen saturation.
• Physical exam – abdomen (tenderness, rigidity), signs of chronic liver disease (spider angiomata, ascites), and oral cavity for blood.
• Laboratory tests
  • Complete blood count (CBC) – to check hemoglobin/hematocrit for anemia.
  • Basic metabolic panel – assesses electrolyte disturbances.
  • Coagulation profile (PT/INR, aPTT) – especially if on anticoagulants.
  • Liver function tests – to gauge underlying hepatic disease.

Imaging & Endoscopic Evaluation

• Upper endoscopy (esophagogastroduodenoscopy, EGD) – the gold‑standard test; allows direct visualization, diagnosis, and often therapeutic intervention (e.g., banding varices, injecting epinephrine).
• Contrast‑enhanced CT scan – used when perforation, intra‑abdominal bleed, or malignancy is suspected.
• Ultrasound (abdominal) – helpful in detecting liver cirrhosis, gallbladder disease, or portal hypertension.
• Radionuclide bleeding scan – can localize intermittent bleeding when endoscopy is negative.

Treatment Options

Treatment is tailored to the cause, volume of blood loss, and the patient’s overall health.

Stabilization (First‑line)

• Airway protection – if massive vomiting or altered mental status, consider endotracheal intubation.
• IV fluid resuscitation – isotonic crystalloids (e.g., normal saline) to restore intravascular volume.
• Blood transfusion – typically when hemoglobin < 7 g/dL (or higher threshold in cardiovascular disease).
• Proton pump inhibitors (PPIs) – high‑dose IV (e.g., omeprazole 80 mg bolus then 8 mg/hr) reduce gastric acidity and stabilize clots.
• Correction of coagulopathy – vitamin K, fresh frozen plasma, or specific reversal agents (e.g., idarucizumab for dabigatran).

Definitive Therapy

• Endoscopic hemostasis – clipping, band ligation, injection of epinephrine, or thermal coagulation.
• Medical management for varices
  • Non‑selective beta‑blockers (e.g., propranolol) to lower portal pressure.
  • Octreotide infusion to decrease splanchnic blood flow.
  • Endoscopic variceal ligation (EVL) or, in refractory cases, TIPS (transjugular intrahepatic portosystemic shunt).
• Treatment of H. pylori – triple or quadruple therapy to eradicate infection and heal ulcers.
• Surgical intervention – reserved for uncontrolled bleeding, perforation, or when endoscopic therapy fails.

Home Care After Hospital Discharge

• Complete the full course of prescribed antibiotics or ulcer‑healing regimens.
• Avoid NSAIDs, aspirin, and alcohol until cleared by your physician.
• Continue PPIs as directed (often 4–8 weeks for ulcer healing).
• Maintain a balanced diet: small, frequent meals; avoid spicy, acidic, or fried foods that may irritate the stomach.
• Follow up with gastroenterology for repeat endoscopy if recommended.

Prevention Tips

While some causes (e.g., varices from advanced cirrhosis) cannot be completely prevented, many risk factors are modifiable:

• Limit alcohol consumption – excessive intake predisposes to gastritis, ulcer formation, and liver disease.
• Use NSAIDs cautiously – take the lowest effective dose, with food, or switch to acetaminophen when appropriate.
• Eradicate Helicobacter pylori if diagnosed – confirmed testing after treatment ensures success.
• Manage chronic conditions – keep diabetes, hypertension, and liver disease under control.
• Avoid smoking – tobacco impairs mucosal defenses and promotes ulcer disease.
• Take prescribed PPIs or H2 blockers if you have a known high‑risk ulcer.
• Stay up‑to‑date on vaccinations (e.g., hepatitis B) to reduce liver disease risk.
• Review all medications with your doctor – include over‑the‑counter supplements and herbal products.

Emergency Warning Signs

References

• Mayo Clinic. “Hematemesis.” https://www.mayoclinic.org. Accessed April 2026.
• Cleveland Clinic. “Upper Gastrointestinal Bleeding.” https://my.clevelandclinic.org.
• American College of Gastroenterology. “Management of Non‑Variceal Upper GI Bleeding.” Gastroenterology 2023; 165(5): 1455‑1465.
• World Health Organization. “Guidelines for the Management of Acute Gastrointestinal Bleeding.” WHO Technical Report Series, 2022.
• National Institutes of Health, National Institute of Diabetes and Digestive and Kidney Diseases. “Peptic Ulcer Disease.” https://www.niddk.nih.gov.
• CDC. “Alcohol-Related Liver Disease.” https://www.cdc.gov.