# Cat Throwing Up Pink or Brown Liquid: What It Means Pink or pink-tinged liquid in your cat's vomit usually means a small amount of fresh blood is mixed with stomach fluid or saliva. It can come from a minor upset like a hairball or acid irritation, but it can also signal bleeding in the stomach or upper intestine. A cat throwing up pink material should be checked by a veterinarian, and heavy or repeated bleeding needs emergency care. This article is educational and is not a substitute for veterinary diagnosis or treatment. ## Quick Answer - Pink vomit almost always means blood. Fresh blood in the stomach looks red or pink, and blood that has been sitting in the stomach longer turns brown or looks like coffee grounds. - One small pink-tinged spit-up in a cat that is otherwise bright, eating, and drinking may not be an emergency, but it should still be reported to your vet the same day. - Go to an emergency clinic now if the vomit is bright red, contains a lot of blood, or your cat is weak, pale, collapsing, breathing fast, or vomiting repeatedly. - Do not give human medications, and never use hydrogen peroxide to make your cat vomit. It can cause severe stomach ulcers and bleeding [1]. - Bring a photo of the vomit and any pill bottles, plants, or products your cat may have gotten into. ## What Pink, Red, or Brown Vomit Looks Like Vomit can show up in a range of colors, and the color tells you something about where the blood came from and how long it sat in the stomach. Fresh bleeding in the stomach or esophagus tends to look bright red or pink. This is called hematemesis, meaning blood in vomit [2][3][4]. If the blood has been in the stomach for a while and mixed with acid, it looks darker, brown, or like coffee grounds. That brown color is digested blood, not food. Pink foam is usually a mix of blood, saliva, and air. Pink mucus can be blood mixed with the slippery coating that lines the stomach. Pink bile means blood is mixed with the yellow-green fluid from the small intestine. Normal cat vomit is usually tan, brown, or yellow and may contain undigested food, hair, or bile. A cat can also bring up clear or white foam on an empty stomach. None of those normal colors should be pink or red. ## Main Causes of Pink or Brown Vomit in Cats Many different problems can put blood into a cat's stomach. Some are mild and treatable at home with your vet's guidance. Others are life threatening within hours. | Cause | Typical clues | How urgent | |---|---|---| | Stomach or intestinal ulcers | Vomiting, dark or pink vomit, poor appetite, pain when picked up | Same day to emergency | | Hydrogen peroxide given at home | You gave peroxide to make your cat vomit, then saw blood | Emergency | | Toxin or medication exposure | Contact with creams, human pain relievers, or other products | Emergency | | Foreign body or perforation | Sudden severe vomiting, belly pain, bloated or painful abdomen | Emergency | | Severe pancreatitis or pancreatic abscess | Weight loss, increased appetite and thirst, intermittent vomiting | Same day to emergency | | Gastritis from acid, diet, or hairballs | Occasional pink-tinged spit-up, cat still eating and playful | Same day call | | Bleeding disorder or clotting problem | Bruising, pale gums, bleeding from other sites | Emergency | ### Ulcers and stomach bleeding Stomach ulcers are a common reason a cat throws up pink or brown material. In one reported case, a cat developed severe ulceration of about 60 percent of the stomach lining after being given hydrogen peroxide at home to induce vomiting [1]. The cat had protracted vomiting and hematemesis and was ultimately euthanized because of the damage. That case is a strong warning against home remedies that force vomiting. ### Toxin exposure Some human products are extremely dangerous to cats. A cat that walked through or licked a compounded pain relief cream containing 10 percent flurbiprofen developed lethargy, hematemesis, and anemia, along with severe gastric ulcers and a duodenal perforation [3]. That cat survived after transfusions and surgery, but the case shows how quickly a topical product can cause internal bleeding. ### Foreign bodies and perforation If your cat swallowed something it should not have, the object can scrape or block the stomach and intestines. In one case, a cat with hematemesis and lethargy had two perforations in the upper small intestine near the bile duct opening, plus bile leaking into the abdomen [2]. Despite surgery, that cat died three days later. Foreign material in the stomach was also found in a cat with acute hematemesis that later developed gas in the liver and stomach wall and did not survive [4]. ### Pancreatic disease The pancreas sits right next to the stomach and upper intestine, so inflammation there can cause vomiting. A cat with recurrent pancreatic abscesses and a suspected cancer had intermittent vomiting along with weight loss, increased appetite, increased thirst, and increased urination [5]. Pancreatic disease often causes vague signs that come and go, which is why blood work and imaging matter. ### Less serious causes Not every pink spit-up is an emergency. Acid irritation, a hairball, a sudden diet change, or eating something greasy can cause mild gastritis. If your cat vomits once, seems fine afterward, and has no other signs, your vet may simply want to monitor and adjust the diet. Learn more about other colors of vomit in our guides to [cat vomiting yellow liquid](/knowledge/veterinary-medicine/digestive-and-urinary-care/cat-vomiting-yellow) and [white foam vomit](/knowledge/veterinary-medicine/clinical-methods/my-cat-threw-up-white-foam-what-does-that-mean). ## Red Flags That Mean Emergency Care Now Call an emergency clinic or go in right away if you see any of these: - Bright red blood in the vomit, or a large volume of pink or red fluid - Vomiting that will not stop, especially several times in an hour - Weakness, collapse, wobbling, or trouble standing - Pale, white, or blue gums - Fast or labored breathing - A hard, painful, or swollen belly - Vomiting after possible exposure to a toxin, human medication, or a foreign object - Black, tarry stool or blood in the stool - Known or suspected ingestion of hydrogen peroxide Blood loss in cats can worsen quickly. A cat that needed a blood transfusion after severe hematemesis went from stable to collapsed overnight [4]. Do not wait to see if it improves on its own. ## What You Can Safely Do at Home While You Wait Your main job at home is to keep your cat safe and gather information for your vet. - Do not give any human medication. Pain relievers, antacids, and anti-nausea drugs for people can harm cats, and some are toxic. - Never use hydrogen peroxide to make your cat vomit. It caused severe stomach ulceration in a reported case [1]. - Remove access to possible toxins. Put away creams, pills, plants, string, foam, and small objects. - Take a photo of the vomit. Color, amount, and contents help your vet judge how serious the bleeding is. - Note the timing. Write down when the vomiting started, how many times, and whether your cat is eating, drinking, and using the litter box. - Offer small amounts of water. Do not force food or water if your cat is vomiting repeatedly. - Keep your cat indoors and quiet. Stress and activity can make bleeding worse. - Call your vet or a pet poison helpline if you suspect a toxin. Have the product container ready. If your cat is stable, your vet may advise a short period of withholding food and then a bland diet. Follow their instructions exactly, because the right plan depends on the cause. ## What Your Veterinarian Will Check Your vet will start with a full history, including what the vomit looked like, what your cat may have eaten, and any medications or products in the home. Then they will do a physical exam, checking gum color, hydration, belly pain, and heart rate. Common tests include: - Blood work to check for anemia, organ function, and infection - A clotting profile if bleeding is suspected [4] - Abdominal ultrasound to look at the stomach wall, pancreas, and intestines [5][2] - X-rays to check for foreign objects or free gas in the abdomen [2] - Endoscopy to look inside the stomach and take biopsies [4] - Testing for toxins if exposure is possible [3] Treatment depends on the cause. It may include fluids, anti-nausea medication, stomach protectants, antibiotics, a transfusion, or surgery. Your vet will calculate any medication dose based on your cat's weight and health. Never give a dose on your own. ## Preventing and Monitoring Pink Vomit Prevention starts with keeping dangerous items out of reach. Store all human medications, creams, and supplements where your cat cannot get to them. Secure trash, string, foam, and small objects. Feed a consistent diet and transition foods slowly. If your cat vomits often, keep a simple log of dates, times, and what the vomit looked like. That record helps your vet spot patterns. Schedule routine exams, especially for older cats. Pancreatic and stomach problems can be chronic and subtle [5]. If your cat has had one episode of pink vomit, ask your vet how long to monitor and what signs mean you should come back in. ## Limitations and When to Contact a Veterinarian This article cannot tell you what is causing your cat's vomiting. Only a veterinarian who examines your cat can do that, and individual cases need a veterinarian's judgment. Contact your vet the same day if your cat vomits pink or brown material once but is otherwise acting normal, or if you are unsure whether the color was blood. Go to an emergency clinic now if you see heavy bleeding, repeated vomiting, weakness, collapse, pale gums, a painful belly, or any possible toxin exposure. Call for a routine visit if your cat has a history of intermittent vomiting, weight loss, or changes in appetite and thirst, even without blood. ## Frequently Asked Questions ### Is pink vomit always blood? No, but it usually is. Pink or red coloring in vomit most often means a small amount of fresh blood is mixed with stomach fluid or saliva. Occasionally a cat eats something pink, like a treat or dye, but you should treat pink vomit as possible blood until your vet says otherwise. ### Can a hairball cause pink vomit? Yes, it can. A hairball can irritate the stomach lining and cause a small amount of bleeding, which shows up as pink streaks. If your cat brings up a hairball with pink tinges once and seems fine, call your vet, but watch closely for repeat episodes. ### What does brown vomit mean in a cat? Brown vomit often means digested blood that sat in the stomach for a while. It can look like coffee grounds. This is a sign of bleeding in the upper digestive tract and should be checked by a veterinarian promptly. ### Should I make my cat throw up if it ate something bad? No. Never use hydrogen peroxide or any home method to force vomiting. Hydrogen peroxide caused severe stomach ulcers and bleeding in a reported case [1]. Call your vet or a pet poison helpline for guidance instead. ### How long can I wait before seeing a vet? If your cat is bright, eating, and vomited pink only once, call your vet the same day for advice. If your cat is weak, vomiting repeatedly, or has blood in large amounts, go to an emergency clinic immediately. Do not wait overnight when bleeding is possible. ## Related Articles - [Cat Vomiting Yellow Liquid: What It Means](/knowledge/veterinary-medicine/digestive-and-urinary-care/cat-vomiting-yellow) - [My Cat Throw Up Yellow Liquid](/knowledge/veterinary-medicine/clinical-methods/my-cat-throw-up-yellow-liquid) - [My Cat Is Throwing Up Yellow Liquid](/knowledge/veterinary-medicine/clinical-methods/my-cat-is-throwing-up-yellow-liquid) - [My Cat Threw Up Yellow Liquid](/knowledge/veterinary-medicine/clinical-methods/my-cat-threw-up-yellow-liquid) - [My Cat Threw Up White Foam What Does That Mean](/knowledge/veterinary-medicine/clinical-methods/my-cat-threw-up-white-foam-what-does-that-mean) - [Cat Vomiting Yellow Liquid But Acting Normal](/knowledge/veterinary-medicine/symptom-guides/cat-vomiting-yellow-liquid-but-acting-normal) - [Cat Throwing Up Brown Liquid: Causes and When to Worry](/knowledge/veterinary-medicine/digestive-and-urinary-care/cat-throwing-up-brown-liquid) - [Cat Throwing Up Foam and Not Eating: What It Means](/knowledge/veterinary-medicine/digestive-and-urinary-care/cat-throwing-up-foam-not-eating) - [Cat Throwing Up but Not Pooping or Drinking: What It Means](/knowledge/veterinary-medicine/digestive-and-urinary-care/cat-throwing-up-not-pooping) ## References 1. [Necroulcerative hemorrhagic gastritis in a cat secondary to the administration of 3% hydrogen peroxide as an emetic agent](https://pubmed.ncbi.nlm.nih.gov/28795786/). Journal of veterinary emergency and critical care (San Antonio, Tex. : 2001), 2017. 2. [Biliary Peritonitis Secondary to Proximal Duodenal Perforation in a Cat](https://pubmed.ncbi.nlm.nih.gov/42244363/). Veterinary radiology & ultrasound : the official journal of the American College of Veterinary Radiology and the International Veterinary Radiology Association, 2026. 3. [Topical flurbiprofen toxicosis in a cat](https://pubmed.ncbi.nlm.nih.gov/28834579/). Journal of veterinary emergency and critical care (San Antonio, Tex. : 2001), 2017. 4. [Extensive hepatic portal venous gas and gastric pneumatosis in a cat](https://pubmed.ncbi.nlm.nih.gov/33222419/). Veterinary medicine and science, 2021. 5. [Recurrent pancreatic abscesses coexisting with a suspected adenocarcinoma in a cat](https://pubmed.ncbi.nlm.nih.gov/42499990/). JFMS open reports, 2026. ## Further Reading - [Vomiting in Cats - Cat Owners (Merck Veterinary Manual)](https://www.merckvetmanual.com/cat-owners/digestive-disorders-of-cats/vomiting-in-cats) - [American Veterinary Medical Association: First Aid Tips for Pet Owners](https://www.avma.org/resources-tools/pet-owners/emergencycare/first-aid-tips-pet-owners) - [Merck Veterinary Manual: Cat Owners](https://www.merckvetmanual.com/cat-owners)