Alabama Rot: What UK Dog Owners Can Actually Do

Alabama rot — properly cutaneous and renal glomerular vasculopathy, or CRGV — gets a burst of attention every winter, usually via a local news story and a map. It is worth understanding, and it is also worth keeping in proportion.

This is not a clinical resource. If you are worried about a specific lesion on your dog, the people to talk to are your vet. What this page is for is the practical, everyday side: when the risk period is, what the recommended precautions actually are, and what kit makes them easy.

What it is, briefly

CRGV damages the lining of small blood vessels. That shows first in the skin — typically as a sore, ulcer or lesion below the elbow or hock, on the legs, paws, face or tongue — and in some dogs goes on to cause kidney failure. It is the kidney involvement that makes it serious.

The cause is still unknown despite years of investigation. There is no vaccine, no screening test, and no proven preventative.

The bit that matters: it is seasonal, and it is muddy

Confirmed cases cluster heavily between November and March, and are associated with wet, muddy, wooded walks. That seasonality is the most consistent pattern in the data, and it is why this belongs in a winter guide rather than a general health one.

It is also why the standard advice from the RSPCA and from vets is so mundane: wash the mud off your dog after a walk, and dry them properly. Nobody claims this is proven to prevent CRGV — the cause is unknown, so it cannot be — but it is a sensible precaution, it costs nothing, and it happens to be good practice anyway for grit, salt and general skin health.

How rare is it, really

Rare. Confirmed UK cases number in the low hundreds across more than a decade, against a dog population in the millions. Far more dogs are hurt each winter by road traffic in the dark, by antifreeze, and by rock salt on their paws.

That is not a reason to ignore it. It is a reason not to stop walking your dog in the woods.

What to actually do

1. Wash mud off after muddy walks, especially legs, paws and belly. A hose, a bucket, or a pack of dog wipes all work. 2. Dry them properly. Wet, muddy fur left to dry on its own is also how you get sore skin and hot spots. A drying coat or a microfibre towel does this faster than a bath towel and keeps them warmer on the way home. 3. Check them over while you dry them. This is the useful habit — you are already handling the legs and paws, so look. You are checking for anything that looks like a sore, ulcer, or a patch of swollen or reddened skin that has appeared without an obvious cause. 4. See a vet promptly about unexplained lesions, particularly below the elbow or hock. Most turn out to be cuts, stings or mud fever. That is a good outcome, not a wasted appointment. 5. Check the case map if you want local context — alabama-rot.co.uk maintains one.

What not to do

Do not stop walking your dog. Do not buy anything sold as an Alabama rot preventative — nothing is proven to prevent a disease whose cause is unknown, and anyone claiming otherwise is selling something. And do not diagnose from photographs online; skin lesions look alike and vets see a lot of things that are not this.

While you are thinking about winter walks

The genuinely high-probability winter risks are worth the same five minutes: grit and rock salt on paws, being seen on dark afternoon walks, and whether your dog actually needs a coat.

Treatment and prognosis, plainly

There is no specific cure. Treatment is supportive — intensive fluid therapy and management of the kidney failure — and it is most effective when started early, which is the entire argument for seeing a vet about an unexplained lesion rather than waiting.

Skin lesions alone often heal. It is the minority of dogs that go on to develop kidney failure where the outlook is poor. Published survival figures for dogs that reach kidney failure are low, and it would be dishonest to soften that. It is also why the rarity matters so much: the disease is severe, and it is very uncommon.

Where cases occur

Cases have been confirmed across most of the UK, with clusters that shift year to year. The Alabama Rot Research Fund maintains a live map, which is the only source worth checking for local context — local Facebook groups reliably circulate unconfirmed reports, old cases and cases from other counties every winter.

A confirmed case in your county does not mean your usual walk is dangerous, and no case in your county does not mean it cannot happen. The precaution is the same either way.

What the signs actually look like

Skin (first, typically 2–7 days before any other sign): a sore, ulcer, or a defined red patch, most often on the lower legs, paws, muzzle or tongue. It often looks like a cut or a bite that nobody remembers happening, and it may not seem to bother the dog.

Kidney involvement (a few days later, in a minority of dogs): vomiting, reduced appetite, unusual tiredness. These are non-specific — they describe a hundred other things — which is exactly why the combination of *an unexplained skin lesion* and *then* being off-colour is the pattern to act on.

The honest proportion

Most unexplained sores on a dog's leg in winter are cuts, grass seeds, stings, mud fever or a reaction to grit and salt. Your vet sees these constantly. Going in and being told it is nothing is the expected outcome, not a wasted trip — and rock salt is a far more likely winter culprit.

*This guide is general information, not veterinary advice. If your dog has an unexplained sore, is off their food, or is vomiting and lethargic, contact your vet — with CRGV, early treatment matters.*