# Blood in Dog Urine or Stool: Treatment Options Blood in urine in dogs treatment always starts with finding the source of the bleeding, because blood that comes from the bladder, the kidneys, or the prostate is handled very differently from blood in stool. Some causes are mild and clear up with a short course of medication, while others need imaging, surgery, or a procedure to stop the bleed. This article is educational and is not a substitute for veterinary diagnosis or treatment. ## Quick Answer - Blood in urine (hematuria) and blood in stool are two separate problems with separate treatment plans. Do not assume one medicine fixes both. - Your vet will usually start with a history, a physical exam, blood work, and a urine or stool sample before prescribing anything [1]. - Most urinary bleeding in dogs comes from infection, stones, or inflammation, and bacterial urinary infections are treated with antibiotics chosen for your dog [2]. - Bright red blood with straining, vomiting, or a swollen belly needs same-day or emergency care, not watchful waiting at home. - Never give human pain relievers such as ibuprofen or acetaminophen to a dog, and do not give leftover antibiotics from a previous illness. ## What Blood in Dog Urine or Stool Actually Looks Like Blood in urine can look like many things. You may see pink, red, or brown-tinged urine, small clots, or blood only at the start or end of a stream. Sometimes the urine looks normal and the blood only shows up on a dipstick or under a microscope at the clinic. Vets call visible blood in urine gross hematuria and microscopic blood hematuria. Blood in stool is different. It may appear as bright red streaks on the surface of a formed stool, drops in the grass after your dog squats, a jelly-like red coating, or black tarry stool that looks like coffee grounds. Bright red usually means bleeding low in the intestines or in the colon. Black tarry stool usually means bleeding higher up in the stomach or small intestine, where blood is digested on the way out. Normal dog urine is clear to light yellow. Normal stool is firm, brown, and holds its shape. Any consistent change in color, frequency, or effort deserves a call to your vet. ## Main Causes of Blood in Urine or Stool The urinary system includes the kidneys, the ureters, the bladder, and the urethra [3]. Bleeding can start anywhere along that path. In the digestive tract, bleeding can come from the stomach, small intestine, colon, or rectum. | Cause | Typical clues | How urgent | |---|---|---| | Bacterial urinary tract infection | Frequent small urinations, straining, accidents indoors, strong odor. Female dogs and dogs with diabetes or kidney disease are at higher risk [2] | See a vet within 1 to 2 days | | Bladder or kidney stones | Straining, dribbling, pain, blood that comes and goes. Stones often show up on ultrasound and urinalysis [4] | Same day if your dog cannot urinate | | Idiopathic renal hematuria (bleeding from the kidney with no clear cause) | Ongoing visible blood in urine, normal clotting tests, no infection or stones found | Prompt evaluation, then specialist care | | Prostate infection or enlargement in older uncastrated males | Straining to poop, blood at the end of urination, hind end discomfort [2] | See a vet within a few days | | Trauma or toxin exposure | Sudden bleeding after a fall, car accident, or eating a poison | Emergency now | | Parvovirus, hemorrhagic gastroenteritis, or severe colitis | Bloody diarrhea, vomiting, lethargy, not eating | Emergency now | | Anal gland disease, polyps, or rectal irritation | Bright red streaks on formed stool, scooting, licking the rear | Routine visit within a few days | | Clotting disorders or immune problems | Bleeding from more than one site, bruising, pale gums | Emergency now | Urinary and intestinal problems can overlap in older dogs. One study of aging dogs found hematuria in 14 of 231 urine samples, and many of those dogs also had protein in the urine [5]. That is one reason your vet will not stop at a single test. ## Red Flags That Make This an Emergency Go to an emergency clinic now if you see any of these: - Your dog strains and strains but nothing comes out, or only a few drops. A blocked urethra is fatal within a day or two without treatment. - Blood is pouring or dripping continuously, not just mixed in urine or stool. - Gums are pale, white, or blue, or your dog is weak, wobbly, or collapsing. - The belly looks swollen and feels hard, or your dog cries when touched. - There is vomiting with bloody diarrhea, especially in an unvaccinated puppy. - Your dog is breathing fast, panting at rest, or cannot settle. - You know or suspect your dog ate a poison, a human medication, or a foreign object. For bloody stool specifically, [Blood in dog stool causes urgency and veterinary evaluation](/knowledge/veterinary-medicine/emergency-care/blood-in-dog-stool) walks through what each pattern of bleeding usually means. ## Safe Things You Can Do at Home While Waiting Home care is about keeping your dog stable and comfortable until the vet sees them. It is not a substitute for treatment. **Do these:** - Collect a fresh urine sample in a clean container if you can. A ladle or shallow clean bowl works well under a squatting female. For males, a clean plastic cup held in the stream works. Refrigerate it and bring it within a few hours. - Photograph the stool or urine on a white paper towel. Color and amount matter to your vet. - Offer water freely. Do not restrict fluids unless your vet tells you to. - Feed a bland, plain meal if your dog is eating normally and not vomiting. Plain cooked chicken with white rice is a common choice. - Keep your dog leashed and calm. Rest reduces bleeding from trauma and stress. - Note the time each symptom started and any medications or foods your dog had in the past week [1]. **Do not do these:** - Do not give ibuprofen, naproxen, acetaminophen, or aspirin. These can cause stomach ulcers, kidney injury, or bleeding problems in dogs. - Do not give human antibiotics or leftover pet antibiotics. The wrong drug can mask infection and delay the right treatment. - Do not give over-the-counter anti-diarrheal medicines unless your vet specifically approves them. - Do not use human urinary pain products. They are not dosed or tested for dogs. - Do not fast your dog for more than a few hours without veterinary advice, especially puppies and small breeds. - Do not wait out heavy bleeding, repeated vomiting, or a dog that will not eat. If the bleeding is in the stool and your dog otherwise seems fine, [Dog Pooping Blood but Acting Normal: What to Do](/knowledge/veterinary-medicine/digestive-and-urinary-care/dog-pooping-blood-acting-normal) covers the middle ground between watching at home and rushing in. ## What the Veterinarian Will Check and Test Your vet starts with the story of how your dog has acted in the days before getting sick, plus a physical exam and tests on blood and urine [1]. Expect questions about water intake, how often your dog urinates, how much urine comes out, what it looks like, and any medications or diet changes [1]. ### First-line tests - **Urinalysis.** Checks for blood, protein, bacteria, crystals, and urine concentration. This is the single most useful test for urinary bleeding. - **Blood work.** A complete blood count and chemistry panel look for anemia, infection, dehydration, kidney values, and electrolyte problems. - **Stool check.** A fecal float and direct smear look for parasites, and a stool culture may be added for stubborn diarrhea. - **Imaging.** X-rays and ultrasound help find stones, masses, and prostate changes. One study of working dogs with urinary disease used ultrasound alongside urinalysis and blood work to tell stones apart from cystitis [4]. - **Urine culture.** This identifies the exact bacteria so your vet can pick the right antibiotic instead of guessing [2]. ### Second-line tests If the basics do not explain the bleeding, your vet may recommend cystoscopy (a camera into the bladder and urethra), contrast imaging of the kidneys and ureters, or a clotting panel. These are common when a dog has ongoing visible blood in urine with no infection and no stones. ## How Blood in Urine in Dogs Is Treated Treatment depends entirely on the cause. There is no single drug for hematuria. **Infection.** Antibiotics chosen from a urine culture. Most urinary infections in dogs are bacterial and travel up from the urethra to the bladder, and sometimes to the kidneys [2]. A full course matters, even if symptoms improve in two days. **Stones.** Some stones dissolve with a prescription diet. Others need surgical removal or a procedure to break them up. Your vet will identify the stone type before choosing a plan, because calcium oxalate and struvite stones are managed differently [4]. **Idiopathic renal hematuria.** This is bleeding from the kidney with no infection, stone, or tumor found. Options include oral tranexamic acid, which resolved bleeding in one reported dog after a 6-week course with no return of visible blood 16 months later [6]. Another option is sclerotherapy, where a specialist infuses a povidone iodine mixture and a silver nitrate solution into the renal pelvis to stop the bleeding. Two dogs treated this way had no microscopic blood 15 and 11 months later [7]. These are specialist-level treatments, and your regular vet will refer you if needed. **Prostate disease.** Older uncastrated males are prone to bacterial prostate infections [2]. Treatment often combines antibiotics with neutering, depending on the diagnosis. **Trauma or toxins.** Emergency stabilization, fluids, blood products if needed, and specific antidotes for the poison involved. **Clotting or immune disease.** Immunosuppressive medication, blood products, or both, guided by a specialist. ## How Bloody Stool in Dogs Is Treated Treating bloody stool in dogs follows the same rule: find the source first. - **Parasites.** Deworming medication targeted to the parasite found on the fecal test. - **Bacterial or stress colitis.** Prescription antibiotics or a short course of anti-inflammatory medication, plus a bland diet. - **Hemorrhagic gastroenteritis or parvovirus.** Hospitalization with IV fluids, anti-nausea medication, and supportive care. These dogs can dehydrate fast. - **Anal gland or rectal problems.** Expression of the glands, antibiotics, or removal of a polyp. - **Food intolerance or diet change.** A prescription or limited-ingredient diet with a slow transition. - **Foreign body or mass.** Surgery or endoscopy. For a full picture of what testing and treatment usually cost, see [Dog Blood in Stool: What the Vet Will Do and How Much It Costs](/knowledge/veterinary-medicine/digestive-and-urinary-care/dog-blood-in-stool-vet-visit-tests-costs). ## Home Remedies That Are Safe or Harmful Owners often ask about Yunnan Baiyao, a traditional Chinese medicine sometimes used for bleeding. In one reported case, treatment with Yunnan Baiyao did not stop kidney bleeding in a dog that later needed a procedure [7]. That does not mean it never helps, but it is not a reliable stand-alone fix. Safe at home while waiting: fresh water, bland food, rest, and a clean sample for the vet. Harmful at home: human pain relievers, human antibiotics, human anti-diarrheals, hydrogen peroxide to make a dog vomit, and any supplement given without telling your vet. If you are unsure whether something is safe, call your vet or a pet poison hotline before you give it. ## Prevention and Monitoring - Keep vaccinations current, especially parvovirus, which is a common cause of bloody diarrhea in puppies. - Use year-round parasite prevention. - Do not let your dog drink from puddles, ponds, or toilets. - Feed a complete, balanced diet and transition foods slowly over 7 to 10 days. - Keep fresh water available at all times. Dilute urine raises infection risk [2]. - Watch for early clues: more accidents, straining, licking the urinary opening, or softer stool. - Schedule wellness visits with a urinalysis for senior dogs, since urinary changes often show up on testing before you notice anything at home [5]. - If your dog has a chronic urinary or intestinal condition, keep a simple log of episodes. Patterns help your vet adjust treatment. ## Limitations and When to Contact a Veterinarian This article cannot tell you what is causing your dog's bleeding. Only a veterinarian who examines your dog and runs tests can do that. Individual cases need a veterinarian. **Call an emergency clinic now** for a dog that cannot urinate, is passing large amounts of blood, has pale gums, is collapsing, or has bloody diarrhea with vomiting. **Call your vet the same day** for visible blood in urine with straining or pain, blood in stool with lethargy or not eating, or any bleeding that started after a possible toxin or trauma. **Schedule a routine visit within a few days** for a single streak of bright red blood on an otherwise normal stool, or for pink-tinged urine in a dog that is eating, drinking, and acting normally. When in doubt, call. A phone call costs nothing and a delay can cost your dog dearly. ## Frequently Asked Questions ### Can blood in dog urine go away on its own? Sometimes mild bleeding from a small irritation clears without treatment, but you cannot tell the difference at home. Infection, stones, and kidney bleeding all look similar from the outside. A vet visit with a urinalysis is the only way to know whether your dog needs medication or can safely be monitored. ### Is blood in urine always a urinary tract infection? No. Infection is common, especially in female dogs and dogs with diabetes or kidney disease, but stones, prostate disease, trauma, toxins, and kidney bleeding cause it too. That is why a urine culture and imaging are often needed before antibiotics are prescribed. ### Should I fast my dog if there is blood in the stool? No, not unless your vet tells you to. Most dogs with bloody stool do better with small bland meals and free access to water. Fasting can weaken a dog that is already losing fluid and nutrients through diarrhea. ### Can I give my dog human antibiotics for bloody urine? No. The wrong antibiotic can fail to kill the bacteria, cause side effects, and make the next culture harder to interpret. Your vet will pick a drug based on your dog's weight, health, and culture results. ### How long does treatment for bloody stool take? It depends on the cause. Parasites often clear within days of deworming, while parvovirus or hemorrhagic gastroenteritis can require several days of hospitalization. Your vet will give you a timeline once the diagnosis is confirmed and will want a recheck if symptoms do not improve on schedule. ## Related Articles - [Dog Blood in Stool: Home Care and When to Call the Vet](/knowledge/veterinary-medicine/digestive-and-urinary-care/dog-blood-in-stool-home-care) - [Blood in dog stool causes urgency and veterinary evaluation](/knowledge/veterinary-medicine/emergency-care/blood-in-dog-stool) - [Dog Pooping Blood but Acting Normal: What to Do](/knowledge/veterinary-medicine/digestive-and-urinary-care/dog-pooping-blood-acting-normal) - [Dog Blood in Urine: Causes and Emergency Steps](/knowledge/veterinary-medicine/digestive-and-urinary-care/dog-blood-in-urine-causes-emergency-steps) - [Dog Blood in Stool: What the Vet Will Do and How Much It Costs](/knowledge/veterinary-medicine/digestive-and-urinary-care/dog-blood-in-stool-vet-visit-tests-costs) - [Dog Blood in Stool but Acting Normal: What Does It Mean?](/knowledge/veterinary-medicine/digestive-and-urinary-care/dog-blood-in-stool-acting-normal) - [Red Dog Urine: Causes, Blood in Pee, and When to Call the Vet](/knowledge/veterinary-medicine/digestive-and-urinary-care/dog-urine-red-causes) - [Blood Clots in Dog Poop: Causes and What to Do](/knowledge/veterinary-medicine/digestive-and-urinary-care/blood-clots-in-dog-poop) - [Urinary Blockage in Dogs: Symptoms and Treatment](/knowledge/veterinary-medicine/digestive-and-urinary-care/urinary-blockage-in-dogs-symptoms) ## References 1. [Detecting Disorders of the Kidneys and Urinary Tract in Dogs - Dog Owners](https://www.merckvetmanual.com/dog-owners/kidney-and-urinary-tract-disorders-of-dogs/detecting-disorders-of-the-kidneys-and-urinary-tract-in-dogs). Merck Veterinary Manual. 2. [Infectious Diseases of the Urinary System in Dogs - Dog Owners](https://www.merckvetmanual.com/dog-owners/kidney-and-urinary-tract-disorders-of-dogs/infectious-diseases-of-the-urinary-system-in-dogs). Merck Veterinary Manual. 3. [The Urinary System of Dogs - Dog Owners](https://www.merckvetmanual.com/dog-owners/kidney-and-urinary-tract-disorders-of-dogs/the-urinary-system-of-dogs). Merck Veterinary Manual. 4. [Comprehensive diagnostic evaluation of urolithiasis and cystitis in K9 dogs in Iraq: Clinical, laboratory, and imaging correlates](https://pubmed.ncbi.nlm.nih.gov/41630760/). Open veterinary journal, 2025. 5. [The relationship between urinalysis abnormalities, soiling behavior, and cognitive decline in aging dogs](https://pubmed.ncbi.nlm.nih.gov/42806282/). Journal of veterinary internal medicine, 2026. 6. [Tranexamic acid resolved idiopathic renal hematuria in a dog](https://pubmed.ncbi.nlm.nih.gov/42699376/). The Canadian veterinary journal = La revue veterinaire canadienne, 2026. 7. [Endoscopy-guided, renal-sparing sclerotherapy in 2 dogs with idiopathic renal hematuria](https://pubmed.ncbi.nlm.nih.gov/40513608/). Tierarztliche Praxis. Ausgabe K, Kleintiere/Heimtiere, 2025. ## Further Reading - [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: Dog Owners](https://www.merckvetmanual.com/dog-owners) - [Cornell Richard P. Riney Canine Health Center: Canine Health Information](https://www.vet.cornell.edu/departments-centers-and-institutes/riney-canine-health-center/canine-health-information)