Your dog's poop tells you more about their health day to day than almost anything else you can check at home. Colour, texture, and how often they go all say something. Most of the time it's nothing. Sometimes it's worth a vet visit, and dark or black stool is the one you should keep an eye out for.
What does healthy dog poop look like?
Healthy dog poop is chocolate brown, holds its shape when you pick it up, and is about the texture of playdough. It shouldn't be hard and crumbly or so soft it won't hold a shape at all. Most dogs go one to three times a day, though this varies with the dog, their age, their food, and how much they're moving.
If your dog's poop looks roughly like this most days, that's your baseline. Notice when your own dog's normal changes.
What does the colour of dog poop mean?
Colour is the fastest thing to check and often the most telling. Brown is normal. Green can mean grass eating or a fast gut transit. Yellow or orange can point to a liver or diet issue. Grey and greasy can suggest trouble digesting fat. Red streaks usually mean fresh blood, often from straining or a small tear. Any colour that isn't brown and sticks around past a day or two is worth a call to your vet.
A single odd-coloured poop after your dog got into something in the garden usually isn't a big deal. A colour that repeats over several days is worth checking out.
What does dark or black dog poop mean?
Very dark or black, tarry stool can be a sign of digested blood from higher up the digestive tract. It's one of the few poop changes that calls for a same-day vet visit rather than a wait-and-see approach. It's different from the darker brown you sometimes see after a food change, which is usually harmless.
The difference is texture as much as colour. Digested blood tends to make stool look almost black and tarry, sometimes with a strong, distinct smell. If you see that, or you're not sure whether what you're looking at counts, ring your vet rather than guess. This is a symptom that needs a professional to look at your dog, not something to diagnose from a photo or a blog post.
What does the consistency of dog poop mean?
Consistency tells you how well your dog's gut is handling what it's been given. Firm and holds its shape is the goal. Soft serve that won't pick up cleanly points to mild upset, often from a diet change, stress, or something they scavenged. Watery diarrhoea is a reason to see your vet, especially if it lasts more than a day or two, or comes with vomiting or your dog going off their food.
A useful habit is the pick-up test. If a poop bag comes away clean and the stool held its shape, that's a good sign. If it smears or won't hold together at all, that's worth watching over the next couple of goes.
Why does my dog's poop change when I switch their food?
A new food changes the bacteria and fibre your dog's gut is working with, so stool often shifts for a few days while things settle. Firmer, more consistent poop on a new food is often a good sign the food suits your dog. Persistent loose stool past a week or two of a proper transition is a sign to go back to your vet or reconsider the food.
Switching food too fast is the most common cause of a rough patch that has nothing to do with whether the new food is right. Our own transition guide moves a dog from old food to new gradually over five to seven days. If you're trying our sample kibble, that's the pace we'd suggest.
How often should a dog poop?
Most adult dogs go once or twice a day. Anywhere from once to three times can be normal, depending on the dog, their food, and their activity level. What matters more than the number is whether it's consistent for your dog. A sudden jump to going far more or far less often is worth mentioning to your vet, especially alongside a change in appetite or energy.
When should you see a vet about your dog's poop?
See your vet if you notice black or tarry stool, blood, diarrhoea lasting more than a day or two, or straining without much result. The same goes for any change that comes with vomiting, lethargy, or your dog going off their food. A single strange poop is rarely urgent. Book an appointment if the pattern repeats, or if there's blood.
It helps to have a rough idea of what's normal for your own dog, which means actually looking each time you pick up. A compostable poop bag makes that easier than it sounds, since you're already there with the bag in hand before it goes in the bin.
Questions people ask
Is it normal for dog poop to change colour with diet?
Yes, within reason. Different proteins and added vegetables can shift the shade of brown slightly. A jump to green, grey, yellow, or black that sticks around, or bright red streaks, is worth checking rather than putting down to diet.
What does it mean if my dog's poop is soft but not watery?
Soft, unformed stool that still roughly holds together is usually a mild digestive upset from stress, a diet change, or something scavenged on a walk. It often settles within a day or two on its own. If it lasts longer than that, or your dog seems off, see your vet.
Can dog food cause dark poop?
Some ingredients can darken stool slightly, but true black, tarry stool is different and can point to digested blood. If you're not confident telling the two apart, treat it as the more serious option and call your vet rather than wait it out.
Should I be checking my dog's poop every time?
A quick glance while you pick up is enough. You're not looking for anything specific most days, just building a sense of what's normal so a real change stands out.
Does a food change explain loose stool for more than a week?
Not usually. A proper food transition over five to seven days should settle within that window. Loose stool that continues well past a switch is a sign to slow the transition down further or check in with your vet, rather than something to wait out indefinitely.