What Helps a Constipated Dog? Causes, Red Flags and Relief

Short answer: for an occasional hard, dry potty, the basics are fresh water changed twice a day (three times in summer), two short walks instead of one long one, and never a home laxative or enema without your vet's say-so. Score the potty from 1 (watery) to 5 (hard and dry) on our free 30-day tracker — a 4 once in a while isn't a worry, but straining repeatedly with little or nothing coming out, blood, a black tarry stool, or a puppy at either extreme of the scale need a vet the same day, not a wait-and-watch.

First — straining to poop, or straining to pee?

Work out which one you're actually looking at. A dog that squats and strains repeatedly can be trying to pass a hard stool — or trying to urinate and struggling, a different problem that, in a male dog especially, can be at least as urgent. If you're not sure which it is, or nothing is coming out either way, treat it as same-day rather than waiting to find out.

Reading the hard end of the potty scale

Our free 30-day tracker scores potty from 1 to 5, mapped to the standard scale vets use: 1 is watery with no shape, 3 holds its shape and is the target, and 5 is hard, dry and an obvious effort to pass. Constipation sits at 4 and 5 — a dry, pellet-like stool, straining, or going less often than usual. A single 4 after a change of food or a long car ride isn't unusual on its own; note it and watch the next one or two. For the full 1-to-5 chart and what each score means, see our guide on how a dog's potty tells you about its gut → (it covers the loose end of the same scale).

Why dogs get constipated

A few things show up again and again: not drinking enough water, especially in the heat, when a dropping appetite often comes with it and a dog eating and drinking less has less moisture moving through the gut; a diet suddenly lower in fibre or higher in bone content; less exercise than usual, which slows gut movement and commonly pairs with being overweight; swallowed hair from grooming or self-licking, common in longer-coated breeds; a new environment or change of routine; and, in older dogs, joint pain that makes squatting uncomfortable. If your dog carries extra weight and constipation keeps recurring, ask your vet about a supervised weight and activity plan alongside the basics below. Some medicines can also cause constipation as a side effect — mention it to your vet at the next check-in rather than stopping a prescription yourself.

What helps, day to day

• Fresh water, changed twice a day — three times in summer. Dehydration is one of the most common, most fixable causes of a hard potty.
• Two short walks rather than one long one. Movement helps the gut move too.
• Keep meals and treats consistent. Sudden diet changes, excess bone or a rich table-scrap meal are common triggers — introduce anything new gradually.
• Ask your vet about a fibre addition. Some vets suggest a small amount of a specific fibre source, such as plain, unsweetened pumpkin, added to a meal — ask what amount suits your dog's size before adding anything.

What we'd avoid saying is "just give a laxative" — human laxatives, stool softeners, mineral oil and enemas are not something to reach for at home without your vet directing it, and using the wrong one, or using one when the real cause is an obstruction, can make things worse.

A prebiotic and probiotic's part in this

VitalPaws Pre + Probiotics Powder — real freeze-dried chicken liver, 4 billion CFU of good bacteria and inulin (a prebiotic fibre that feeds those bacteria) per scoop — is mixed once a day into the morning meal, ideally with a little wet food. Fibre and a settled gut microbiome support normal, regular movement over time, which is part of why customers often report firmer, more consistent potty early on. Start with half the daily dose for the first week so the gut adjusts, then move to the full amount for your dog's weight.

The measuring scoop is in every pack. Full feeding guide: how much to scoop, by weight → A supplement supports an otherwise well dog's digestion alongside your vet's plan — it isn't a substitute for checking what's causing a constipation that keeps coming back.

Puppies are different — don't wait it out

VitalPaws itself is meant for puppies from 2 months (8 weeks) old, dosed by weight. A very young puppy — weeks, not months, old — that hasn't passed a stool in over 24 hours needs a vet the same day, not a home remedy: in the first weeks of life, puppies often need help from their mother or a caregiver to stimulate elimination, and one that isn't going at all can decline quickly. If paw licking or itching is also part of the picture, that's worth reading on its own once the constipation is sorted: see how to stop a dog licking its paws so much →.

When it's more than an occasional hard potty — see a vet the same day

• Blood in the stool, or a stool that is black and tarry.
• Mucus coating the stool on more than one occasion.
• Straining repeatedly with little or nothing coming out — from either end.
• No stool at all for more than a day, especially in a puppy or a senior.
• A hard, swollen, painful belly with retching — that's a different emergency (possible bloat), not constipation; see our guide on gut balance and why symptoms return for the wider picture of gut-linked signs.
• Constipation paired with vomiting, a dull or feverish dog, or one that's stopped eating.

What real customers say

From genuine reviews on the product page — not every dog's experience will match, but these are real:

Individual results and timelines vary — 8 out of 10 dog parents notice visible improvement within 3–4 weeks of daily use.

Not visibly better by Day 30? Tell us and we refund 100% — no forms, no return shipping, keep the pack.