Alabama Rot in Dogs: Signs, Timeline and What to Do
Written by Corinne Homer, Copywriter. Reviewed by Dr. Linda Simon MVB MRCVS, Team Vet.
Alabama rot is the common name for cutaneous and renal glomerular vasculopathy, or CRGV, a rare but serious disease that damages small blood vessels in the skin and sometimes the kidneys. It was first described in racing Greyhounds in the United States in the 1980s. The modern pattern has been studied mainly in the United Kingdom, where cases have occurred across many breeds since 2012.
The name can be misleading for American dog owners. It does not mean that every unexplained sore in Alabama is CRGV, and a dog does not need to have visited Alabama to be affected. The condition is diagnosed from its clinical pattern and specialized testing, not geography alone.
Most skin sores in dogs are caused by something much more common, including injury, infection, allergy, parasites or irritation. CRGV is nevertheless time-sensitive because acute kidney injury can follow the skin changes. Any new, unexplained sore on a dog's lower leg, paw, belly or muzzle deserves prompt veterinary advice, especially when the dog also seems unwell.
Causes of Alabama rot in dogs
The exact cause of CRGV remains unknown. Researchers have investigated infectious, toxic, environmental and immune-related explanations, but no single cause has been confirmed. A published veterinary review describes CRGV as an emerging UK condition that had also been reported previously in the United States and Germany. It emphasizes that no definitive infectious agent has been linked to the disease.
Many UK cases have followed walks in wet or muddy woodland, most often during cooler months. That is an association, not proof that mud, a particular woodland or a specific organism causes the disease. Thousands of dogs walk in wet places without developing CRGV.
Is Alabama rot contagious?
Available evidence does not suggest ordinary dog-to-dog or dog-to-human transmission. A dog is not considered at risk simply because it met another dog that was later diagnosed. Because the cause is unresolved, owners should follow their veterinarian's hygiene and monitoring advice rather than trying to isolate a dog based on internet reports.
Symptoms of Alabama rot to watch for
The first noticed change is usually an unexplained skin lesion. In affected dogs, lesions are commonly found on the lower legs or paws, but they may also appear on the belly, chest, mouth or muzzle. A proportion of dogs then develop acute kidney injury.
- An area of redness, swelling, erosion or ulceration that is not explained by a known injury
- Persistent licking or attention to one spot
- Pain, sensitivity or lameness
- Reduced appetite, tiredness or weakness
- Vomiting
- Changes in thirst or urination
- Pale gums, unusual bruising or other signs that the dog is systemically unwell
These signs are not specific to CRGV. For example, dog skin allergies can cause redness and licking, while kidney disease in dogs can cause appetite, thirst and urine changes. Only a veterinarian can evaluate the combination and decide which tests are appropriate.
What does Alabama rot look like?
A lesion may begin as a small red or swollen area and progress to an open sore. It can resemble an insect bite, scratch, pressure injury, hot spot or infection. Photos online cannot confirm a diagnosis. Location, speed of change, the dog's overall condition and laboratory findings all matter.
Do not apply household disinfectant, essential oil, human antibiotic cream or a tight bandage unless a veterinarian directs you. Prevent licking if this can be done safely, keep the area clean and dry, and call the clinic. If your dog is vomiting, weak, not eating or urinating abnormally, say so when you call.
How quickly does Alabama rot develop?
Kidney signs can follow the first skin lesion within days. The UK source for this article highlights a possible one-to-three-day progression in some dogs, while published case descriptions show that timing varies. That variation is why owners should not wait for vomiting or urine changes before seeking help for a suspicious lesion.
CRGV is not something to monitor at home for a week while trying skin remedies. Early veterinary examination creates the best opportunity to document the lesion, run baseline blood and urine tests, and repeat those tests if the first results are normal but concern remains.
Alabama rot in the United States and United Kingdom
CRGV was originally reported in US racing Greyhounds, but the sustained cluster that brought the disease back into public awareness has occurred chiefly in the UK. The original UK article recorded 318 confirmed UK cases since 2012, including 10 cases in 2024, based on figures available in October 2024. Those historical figures should not be treated as a live US incidence estimate.
American owners should use local veterinary guidance rather than a UK case map to judge a new lesion. The practical response is the same: photograph the spot, note recent travel and environments, and arrange an examination. Your veterinarian can consider common US differentials such as trauma, bacterial or fungal infection, parasites, immune-mediated disease, toxin exposure and other causes of kidney injury.
Are some dog breeds more susceptible?
CRGV has affected many breeds, ages and body sizes. UK case series include a greater representation of some long-legged and working breeds, including spaniels, Labradors, Whippets and Greyhounds, but that does not prove a simple inherited risk. Lifestyle and exposure may influence which dogs appear in the data. Any breed can develop compatible signs.
How can I reduce my dog's risk?
There is no proven vaccine or guaranteed prevention method because the cause is unknown. Sensible post-walk care can still help you spot many skin problems early:
- Keep your dog within sight in very muddy areas and avoid stagnant hazards or posted disease sites.
- Rinse off heavy mud with clean lukewarm water when you get home.
- Dry paws, between the toes, lower legs and belly thoroughly.
- Check for cuts, thorns, swelling, heat, tenderness or a new sore.
- Take a clear photo with a size reference if you find a lesion.
- Record the walk location, date and any change in appetite, energy, thirst or urination.
- Ask the veterinarian how quickly the dog should be seen rather than relying on a home diagnosis.
You do not need to stop healthy outdoor activity because of this rare disease. Choose a route that suits the weather and your dog's health, then make the check part of the normal cleanup. Our guide to washing a dog safely explains how to avoid irritating the skin with excessive bathing.
What should I do if my dog shows symptoms?
Call a veterinarian promptly for an unexplained lesion, and seek urgent care if it appears with vomiting, weakness, appetite loss, collapse, pale gums or reduced urine. Tell the clinic when the lesion appeared, how it changed, where the dog walked and whether any toxin, medication or contaminated water exposure is possible. The blue-green algae safety guide covers a different emergency that can follow outdoor water exposure.
Do not give ibuprofen, naproxen, acetaminophen or another human pain reliever. Some are toxic to dogs and can worsen kidney or gastrointestinal injury. Do not force food or large volumes of water into a nauseated dog.
How is Alabama rot diagnosed?
There is no simple in-clinic test that proves CRGV in a living dog. The veterinarian starts with history, a full examination, bloodwork, urinalysis and blood-pressure or imaging assessment when indicated. Repeated kidney values and urine output can be important because abnormalities may develop after the first skin change.
Other conditions must be ruled out. Definitive confirmation has historically depended on characteristic microscopic changes in kidney tissue, which is one reason published confirmed-case totals are lower than the number of suspected cases.
How is Alabama rot treated?
Treatment is individualized and supportive. Skin lesions may be cleaned, protected and managed for pain or secondary infection. A dog with kidney involvement may need hospitalization, carefully controlled intravenous fluids, anti-nausea treatment, nutrition support and frequent monitoring of urine output, electrolytes and blood values.
Severely affected dogs may be referred to a specialty hospital for advanced kidney support. Options such as dialysis or therapeutic plasma exchange are available only in selected centers and are not appropriate for every case. Treatment decisions belong to the veterinary team caring for that dog.
Do dogs recover from Alabama rot?
Dogs with skin lesions but no kidney injury can recover, although the wound may take weeks to heal. Once severe acute kidney injury develops, the outlook becomes guarded and the disease can be fatal. Survivors may require follow-up bloodwork, urinalysis, blood-pressure checks and a longer kidney-care plan.
Does Alabama rot affect other animals?
The recognized CRGV syndrome is described in dogs. Current evidence has not established the same disease pattern as a contagious threat to people or ordinary household pets. A separate illness in another animal should still be assessed on its own merits.
Should I be worried?
Be aware, not alarmed. CRGV is rare, while minor wounds, allergies and infections are common. The useful habit is to check your dog after outdoor activity and act promptly on an unexplained lesion or systemic illness. Read why dogs scratch and bite their skin for common explanations, but do not let a blog delay veterinary care.
Frequently asked questions
How quickly can Alabama rot affect the kidneys?
Kidney injury can appear within days of the first skin lesion, but timing varies. Contact a veterinarian when a suspicious lesion is found rather than waiting for kidney signs.
Can my dog catch Alabama rot from another dog?
Available evidence does not indicate routine dog-to-dog transmission. The cause remains unknown and research has focused on environmental associations.
Is every paw sore Alabama rot?
No. Trauma, irritation, infection, allergy and foreign material are much more common. A veterinarian must assess the lesion and the dog's overall condition.
Can a supplement prevent Alabama rot?
No supplement has been shown to prevent CRGV. Finch & Barker Mushroom Chews are an adult everyday-wellness product, not a CRGV treatment or preventive.