Healthy dog poop is chocolate brown and formed. If you see black, tarry stool or fresh blood, your dog needs a vet visit.
Green, yellow, orange or gray stool can have several possible causes, from eating grass to liver or pancreas problems. Loose stool with vomiting, tiredness or not eating also needs a vet.
How to use this dog poop color chart
Start with what's normal for your dog. Check the new color in good light.
Is it formed, soft, watery, sticky, greasy or coated in mucus? Count how many bowel movements look different, and think back: did your dog eat a strongly colored food, chew or medicine?
The chart helps you decide how fast to act. It doesn't diagnose. VCA describes healthy stool as generally chocolate brown, formed and segmented.
Puppies use the same chart. Parvovirus, a potentially fatal viral disease, most often affects puppies or unvaccinated adult dogs, so call sooner.
Dog poop color chart: 7 color groups
These are the seven color groups owners see most, what each can mean, and what to do next.
| Color | What it can mean | What to do |
|---|---|---|
| 1. Brown | The usual baseline when it's also formed and moist | Know your dog's normal, and watch for texture changes. |
| 2. Green | Grass, green food, or food moving through fast | Monitor only if food explains it and your dog feels well. |
| 3. Yellow or orange | Food pigments, food moving through too fast, or a liver or gut problem | Call your vet if it persists or comes with other signs. |
| 4. Pale, tan, or gray | Possibly a pancreas or bile problem if it's gray or greasy (AKC) | Call if it's unexplained or repeats. |
| 5. Black or tar-like | Possible digested blood, or iron, bismuth, or charcoal | Call a vet promptly. It can be an emergency. |
| 6. Red | Fresh blood from the lower gut, rectum, or anal area | Call promptly for a large amount or repeated blood. |
| 7. White or chalky | A mineral- or bone-heavy meal, or specks worth checking | Don't diagnose worms from a photo. Call if it repeats. |
Orange dog poop
Orange or yellow stool can be a sign of a liver or bile problem (AKC). For yellow stool in particular, see yellow dog poop. Note any new foods, and photograph the stool. Call your vet if the color lasts or your dog seems unwell.
Your dog’s appetite, energy, and other symptoms help determine urgency.
Black dog poop
| Observation | What to record |
|---|---|
| Orange stool | Food changes and other signs |
| Black, tarry stool | Call promptly; report medicines too |
| Visible red blood | Call your vet for triage |
Cornell describes bleeding and diarrhea warning signs.
- Use good light for a photo.
- Note the time and consistency.
- Bring a sample if your clinic asks.
Dog poop texture chart: hard, formed, soft, or watery
Color is half of the picture. Texture is the other half, and it answers the question owners ask most: should dog poop be hard or soft?
Healthy stool is in between. It's formed, moist, and holds its shape when you pick it up.
- Purina publishes a seven-point fecal scoring chart.
- It runs from 1 (hard, dry pellets) to 7 (watery).
- A score of 2 is the target.
- A study comparing two canine scoring systems, the Purina and Waltham charts, in 126 dogs found that veterinarians and lay people did not always give the same stool the same score.
- Score your dog's stool the same way each day, and share the numbers with your vet.
| What you see | What it can mean | Next step |
|---|---|---|
| Hard, dry pellets (score 1) | Low water intake (dehydration) | Check water and activity. Call your vet if your dog strains. |
| Formed (scores 2 to 3) | Score 2 is the ideal: pliable and segmented, with little or no residue. Score 3 is moister and leaves some residue but holds its form. | Aim for score 2. Keep the routine steady. |
| Soft but shaped (scores 4 to 5) | A food change, rich treats, stress, or a gut bacteria shift | Watch a day or two, and change one thing at a time. |
| Loose or watery (scores 6 to 7) | Active diarrhea, which has many possible causes | Call your vet if it lasts beyond about 48 hours. |
Score 3 is log-shaped and less segmented than score 2. It can leave residue while holding its form.
- Call if loose stool lasts beyond about 48 hours or returns.
- Call sooner for a puppy or small dog.
- Get prompt care for blood, vomiting, pain, or weakness.
Not sure where soft stool ends and diarrhea starts? Our guide to soft stool that isn't diarrhea walks through scores 4 and 5.
If your dog's poop is too soft and you want it more formed, start with the food and routine steps in how to make dog poop harder.
Black, tarry stool (melena)
Melena is the medical name for black stool. Cornell's veterinary college says it is caused by partially digested blood coming out in the feces. The blood can come from the upper digestive tract, the mouth or even the respiratory tract.
Cornell lists a foreign body, infections, inflammation, trauma, tumors and ulcers as possible causes of these bleeds. It also says to bring a stool sample when you take your dog to the veterinary hospital, so the veterinarian can see what the diarrhea looks like.
Small-intestine and large-intestine stool patterns
A table in the Merck Veterinary Manual, written for animals in general, separates diarrhea from the small intestine and the large intestine. Blood color is one of the signs it lists.
- Small intestine: normal or slightly increased frequency, normal to increased stool volume, no urgency or straining (tenesmus), dark black (melena) blood, and weight loss that may be present.
- Large intestine: very frequent stools, decreased volume, urgency and straining (tenesmus) that are usually present, frequent mucus, and fresh red blood.
VCA says colitis is inflammation of the large intestine. Most owners of dogs with colitis see frequent, small amounts of stool, and small amounts of bright red blood are often passed near the end of a bowel movement.
VCA's page on puppy poop also says black stool often means bleeding in the stomach or small intestine, and red blood comes from the large intestine or anal region. So the color of the blood is one of the clues that tells the two patterns apart.
Five red flags that shouldn't wait
| Red flag | What it can mean | Next step |
|---|---|---|
| 1. Black, sticky, tar-like stool | Can be digested blood from the stomach or small intestine | Call a vet now. See emergency signs below. |
| 2. Lots of red blood, or bloody stool that repeats | Blood loss, severe inflammation, infection, or a bleeding problem | Call today; severe bloody diarrhea needs emergency care. |
| 3. Stool change plus whole-body signs | Repeated vomiting, weakness, pain, a swollen belly, or collapse | Don't wait for another bowel movement. |
| 4. A high-risk dog | Puppies and small dogs | Call early, even if the change looks mild. |
| 5. A change that sticks around or comes back | An exam, fecal test, bloodwork, or imaging may be needed | Book a vet visit instead of trying more home remedies. |
For a closer look at blood in dog stool and emergency signs, use the veterinary triage guide.
Food, medicines, and supplements can change color
Beets, red dyes, carrots, sweet potato, leafy greens, dark chews and other strongly pigmented foods can all change stool color. So can iron, bismuth, activated charcoal and some medicines.
Timing tells you a lot, so jot down what your dog ate and when the color started.
Don't stop a prescribed medicine on your own. And hold off on new supplements, toppers, fibers or foods while you're watching an unexplained change. Stacking changes makes the cause harder to read and can delay the right care.
To put those observations in context, read our guide to symptoms of poor gut health in dogs.
Frequently asked questions
Can brown dog poop rule out a digestive problem?
No.
Brown is a usual stool color, but a brown stool can still be watery, unusually frequent, or accompanied by vomiting or poor appetite.
Report consistency and your dog’s overall condition alongside the color rather than using the chart as a clean bill of health.
What does bright red blood in dog poop mean?
Fresh red blood often comes from the lower intestine, rectum or anal area, and large-bowel inflammation, parasites and injury can all cause fresh red blood. Call for a large amount, repeated blood, diarrhea with blood, or any blood in a dog who seems unwell.
Can grass make dog poop green?
Yes, grass and green food can turn stool green, and so can food moving quickly through the gut. Watch and wait only if your dog feels fine and grass or food clearly explains it; call if it repeats or comes with diarrhea, vomiting, pain, low energy or poor appetite.
What color should puppy poop be?
Brown and formed is the goal. Diarrhea, blood, or low energy in a puppy needs a vet quickly.
Can pictures of black dog poop confirm bleeding?
No, but a clear picture is useful history for your vet, who may also need tests. Cornell explains how diarrhea is assessed.
Where can I check blood in my dog’s stool?
See the blood-in-stool guide for a vet-first urgency checklist.
What should I record with mucus and fresh blood?
Record whether stools are small, frequent, urgent, or passed with straining. VCA describes this pattern alongside mucus and fresh blood in dogs with colon inflammation. Our colitis guide explains that condition in more detail. These observations help the clinic assess the pattern alongside the stool's appearance.
Are white specks the same as stool that's chalky throughout?
Rice-like specks can be individual tapeworm segments, unlike stool that looks chalky throughout. VCA says segments may appear around the anus or on freshly passed stool. Routine stool testing can miss tapeworm, so the clinic should identify suspected segments. For a young dog with loose stool too, see our puppy diarrhea guide.
Sources
- VCA Animal Hospitals: stool colors and normal appearance
- Merck Veterinary Manual: black versus fresh red blood in stool
- Cornell University College of Veterinary Medicine: emergency and critical-care signs
- Merck Veterinary Manual: stomach and intestinal disorders in dogs
- Companion Animal Parasite Council: fecal examination procedures
- Consistency of faecal scoring using two canine faecal scoring systems
This article is general education and can't replace an exam or advice from the vet who knows your dog.
What causes gray or greasy stool?
Gray or greasy stool is possibly caused by a pancreas or biliary problem (AKC).
Digestive enzymes from the pancreas break down fat, and when they run short, nutrients pass into the stool.
Bile from the liver and gallbladder also helps digest fat.
Merck's page on exocrine pancreatic insufficiency explains that the lack of absorbed nutrients causes weight loss and can lead to vitamin deficiencies.
It describes the stool as loose and voluminous, with fat in it.
Why does weight loss with a big appetite matter?
Dogs with exocrine pancreatic insufficiency (EPI), where the pancreas makes too few digestive enzymes, commonly eat more than usual and still lose weight.
That pairing is a red flag, not a diet problem to solve at home.
Merck reports that weight loss and loose stools are the most commonly reported signs of EPI in dogs and cats, and that dogs also commonly have a larger appetite.
Note any change in the amount your dog eats.
What blood test checks for EPI?
Serum trypsin-like immunoreactivity, or TLI, helps diagnose EPI. A fecal elastase test is less reliable than the blood test.
Should I simply switch to a low-fat diet?
Do not choose a therapeutic diet from stool appearance. The nutritional plan depends on the diagnosis; EPI does not automatically require fat restriction.
References for this addition
Could rat bait be the cause?
Anticoagulant rodenticides, which interfere with blood clotting, can cause bleeding, including into the gut. Dogs can be exposed by eating bait or poisoned rodents.
Do not use stool color to decide whether an exposure occurred. Merck describes several rodenticide types with different effects.
Some signs can appear late, so a dog that seems fine after a possible exposure still needs a call.
Keep the packaging if you have it, since the active ingredient decides the treatment.
References for this addition
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