Throwing up blood looks like bright red streaks or spots mixed into vomit, or it can look like dark brown or black material that resembles coffee grounds. The color and texture tell you roughly where the bleeding started. Bright red blood usually means the bleeding is happening in the esophagus or stomach and is recent. Dark, coffee-ground material means the blood has been sitting in the stomach and has been partially digested by stomach acid.
Vomiting blood is called hematemesis in medical terms. It is always a reason to seek medical care. The amount can range from a few streaks to a large volume, and even a small amount needs a professional evaluation. This article explains what the different appearances mean, the common causes, and what to do next.
What Does Throwing Up Blood Look Like in Different Forms?
Blood in vomit does not always look like the blood you see from a cut. Stomach acid changes blood over time, which changes its appearance.
Bright red blood is fresh. It often appears as streaks or swirls mixed with food or stomach fluid. This suggests active bleeding in the upper digestive tract, usually the esophagus or the stomach itself. The bleeding has not had time to be digested.
Dark red blood may mean the blood has been in the stomach for a short while. It is still recognizable as blood but has started to clot or mix with digestive juices.
Black or brown material that looks like coffee grounds is digested blood. When blood sits in the stomach, acid turns it dark and grainy. Vomiting this material means the bleeding started some time ago and has been pooling in the stomach.
Some people also vomit material that looks like pure blood with clots. This is a sign of heavy, rapid bleeding. This situation requires immediate emergency care.
A separate condition is coughing up blood from the lungs, which is called hemoptysis. This blood is usually bright red and frothy because it is mixed with air. It comes with coughing, not vomiting. If you are unsure whether blood is coming from your stomach or your lungs, tell the emergency doctor exactly what happened. They will determine the source.
What Causes Throwing Up Blood?
The bleeding can come from any part of the upper digestive tract. This includes the esophagus, the stomach, or the first part of the small intestine called the duodenum.
Peptic ulcers are one of the most common causes. These are open sores on the lining of the stomach or duodenum. If an ulcer erodes into a blood vessel, it bleeds. A major cause of ulcers is long-term use of nonsteroidal anti-inflammatory drugs (NSAIDs) like ibuprofen or naproxen. Infection with the bacteria H. pylori is another major cause.
Torn blood vessels in the esophagus can also bleed. Severe or repeated vomiting can tear the lining where the esophagus meets the stomach. This is called a Mallory-Weiss tear. The blood is usually bright red and appears after several episodes of vomiting. This tear is more common in people who vomit heavily from alcohol use or other causes.
Enlarged veins in the esophagus are a serious cause. These are called esophageal varices. They develop when blood flow through the liver is blocked, often due to advanced liver disease like cirrhosis. These veins can burst and cause massive, life-threatening bleeding.
Inflammation of the stomach lining, called gastritis, can also cause bleeding. This can result from alcohol, stress, certain medications, or infection. The stomach lining becomes irritated and can ooze blood.
Swallowed blood is a less serious cause. A nosebleed or dental procedure can cause you to swallow blood, which you later vomit. This is not dangerous, but it can look alarming. Tell your doctor about any recent nosebleeds or mouth injuries so they can rule this out.
When Is Throwing Up Blood an Emergency?
Vomiting blood is always a reason to contact a doctor. Certain signs mean you need emergency care immediately.
Go to an emergency room if you vomit a large amount of blood, if the vomiting continues, or if you feel dizzy, lightheaded, or weak. These symptoms can mean significant blood loss. A fast heart rate or pale skin also signals that your body is struggling to maintain blood flow.
Severe pain in the chest or abdomen along with vomiting blood is another warning sign. This combination can indicate a perforated ulcer or other serious condition that requires urgent treatment.
Do not wait to see if it stops on its own. Do not eat or drink anything until a doctor has evaluated you. Some tests, like an endoscopy, require an empty stomach. An endoscopy is a procedure where a thin tube with a camera is passed down your throat to look at the digestive tract and stop the bleeding if needed.
How Is Vomiting Blood Diagnosed and Treated?
Doctors will first check your vital signs and ask about your medical history. They will want to know what medications you take, how much alcohol you drink, and whether you have liver disease or a history of ulcers.
Blood tests check your red blood cell count and how well your blood clots. These tests help doctors estimate how much blood you have lost.
The main diagnostic tool is an upper endoscopy. This is both a diagnostic and a treatment tool. The doctor can see the source of the bleeding directly. If they find an actively bleeding ulcer or a torn vessel, they can often treat it during the same procedure. They may inject medication, use heat to seal the vessel, or place a clip on it.
Treatment depends on the cause. For ulcers, doctors may prescribe acid-reducing medications called proton pump inhibitors. If H. pylori infection is present, antibiotics are used. For esophageal varices, treatment focuses on lowering pressure in the blood vessels and may involve specific medications or procedures to band the veins.
In severe cases, a blood transfusion may be necessary. This only happens when blood loss is substantial.
Can Throwing Up Blood Be Prevented?
Some causes of vomiting blood are preventable. Reducing your use of NSAIDs can lower your risk of ulcers. If you must take these medications regularly, talk to your doctor about whether you need a medication to protect your stomach lining.
Limiting alcohol intake protects the stomach lining and the liver. Liver damage from alcohol can lead to the serious bleeding that comes from esophageal varices.
If you have been diagnosed with an ulcer or H. pylori infection, complete the full course of treatment your doctor prescribes. Do not stop early, even if you feel better.
If you vomit repeatedly from any cause, seek medical care before it becomes severe. Repeated vomiting can tear the esophagus. Staying hydrated and addressing the underlying cause of vomiting reduces this risk.
No home remedy or over-the-counter product treats vomiting blood. This is not a condition to manage on your own. The cause must be identified by a doctor, and some causes are life-threatening without prompt treatment.
Frequently Asked Questions
What does it mean if I throw up blood that looks like coffee grounds?
It means the blood has been in your stomach long enough for acid to digest it. This points to bleeding in the stomach or upper intestine and requires prompt medical evaluation.
Can throwing up blood be from a nosebleed?
Yes, swallowed blood from a nosebleed can be vomited later. Tell your doctor about any recent nosebleeds so they can consider this as a cause.
Is bright red blood in vomit more dangerous than dark blood?
Bright red blood usually means active bleeding that has not been digested, but danger depends on the source and amount. Any vomiting of blood needs a medical evaluation regardless of color.
Should I drink water after throwing up blood?
Do not eat or drink anything until a doctor evaluates you. You may need an endoscopy, which requires an empty stomach.
