Health
Ten days ago he was in long grass. Today he will not get up or eat, and his urine is the colour of strong tea. Babesiosis does not wait for morning, and neither should you.
Caution. Reddish or brown urine, pale or yellowish gums, fever, a dog who will not eat or get up, in spring or autumn: call today, even if it is evening. Babesiosis gets worse within hours.
Do not look for the answer in a Facebook group, on TikTok or on a forum. Look for someone trained for this: your dog's own veterinarian, the only person who can examine, investigate and treat them.
Use this page to know what to observe, what to note and what to ask at the appointment, not to treat at home. If you still have doubts after a consultation, ask another vet or a specialist (dermatologist, internist) for a second opinion, not a group. And if you do not have a regular vet yet, find one now, while your dog is healthy: how to choose a veterinary clinic.
Last Tuesday you walked the dog along the edge of a wood, through wet grass, and pulled a tick off his neck. Or you found nothing. Today is day ten. He did not get up when you came in, his bowl is still full, his ears are burning and he is breathing short and fast from the belly. In the evening, when he goes out, his urine runs brown, like tea left too long in the pot, or like stout. In tick season that picture has a name, and most of the time the name is babesiosis. It also has one rule: you do not wait for morning.
Babesiosis (older vets and some lab reports still call it piroplasmosis) is a disease of the blood. A microscopic parasite, Babesia, causes it, and ticks carry it. In European dogs it is nearly always Babesia canis, and the tick that spreads it is Dermacentor reticulatus, the ornate dog tick. It likes damp meadows, woodland edges, riverbanks and, increasingly, the green strips between blocks of flats. Romania sits squarely in its territory, and the tick has been moving north and west across Europe for years. Inside the dog, the parasite gets into the red blood cells and bursts them; the dog's own immune system, trying to clear the infected cells, destroys more of them. That is where the anaemia and the dark urine come from. Left alone, the kidneys and other organs go next.
A dog with babesiosis can go from "a bit quiet today" to "cannot stand" in a day or two. The list below does not wait for morning:
The first signs usually show one to three weeks after the bite. By then the tick has long since dropped off, and very often you never saw it at all. That is why you tell the vet "he was in long grass a fortnight ago" even if you found nothing on him. That one sentence can save an hour of guessing.
Ten minutes, while you find your coat and keys. If it takes longer, you leave without it.
Gums. Lift his lip and look in daylight or with your phone torch. Pink is fine. White, grey or yellow is not. Press a finger on the gum until it blanches, then let go: in a healthy dog the colour is back within two seconds.
Urine. Catch a little in a clean cup if you can. If not, photograph it on snow, on white tiles or on a tissue. The colour tells the vet far more than "it was dark".
Temperature. If you have a digital thermometer and he tolerates it, take it rectally with a little petroleum jelly on the tip. Between 38 and 39.2 °C is normal. If he fights you, stop; the vet will take it anyway.
Ticks. Where he has been in the last three weeks, which ticks you removed and when, what tick product he is on and since when (a photo of the box answers "what did you put on him?"). The ornate dog tick is bigger than the woodland tick you know, with a whitish-grey marbled pattern on its back. It favours the head, neck, ears and chest.
What has changed, and since when. The first day he turned his nose up at food, the first day he lay around more than usual, whether he has vomited, whether he is drinking more or less.
| Worth knowing | Why |
|---|---|
| Spring (March to May) and autumn (September to November) | Peak activity for the tick that carries Babesia canis; in a mild winter it comes out on sunny days too |
| Long grass, riverbanks, woodland edges, parks with meadows | Where it waits |
| One to three weeks from the outing to the first signs | How long the parasite takes to multiply in the blood |
| Dark urine, pale gums, fever, listlessness | The typical combination; you do not need to see all of them |
| A young, active dog who spends a lot of time outdoors | Working, hunting and sporting dogs meet it most often |
Before you leave, two questions: how do you protect him for the rest of the season, and is the babesiosis vaccine that exists in some European countries available where you live. It does not stop the disease outright, but it can make it milder. Your vet will know whether it is worth it for your dog.
Babesia canis does not pass from tick to dog the moment the tick attaches. It needs time; the literature talks of hours, not minutes. The two rules that matter rest on that window: a tick product that kills or repels the tick quickly, chosen with your own vet and renewed on schedule, and a coat check after every outing into grass for as long as the season lasts.
In mantrailing we train on exactly its ground: woodland edges, meadows, riverbanks. We tell every team the same thing, every time: protection up to date before the grass comes up, and a hand through the coat at the car before the dog gets in.
A dog who has had babesiosis once is not immune. He can get it again, just as badly. The prevention calendar does not change.
What dog owners search for most often on the internet about this problem, with the short answer. The answers are a guide only: the decision belongs to your dog's own vet, after an examination.
Fever, listlessness, a full bowl left untouched, pale or yellowish gums and dark urine, the colour of strong tea or stout. Some dogs also vomit, breathe fast and go weak in the back legs. The signs usually arrive one to three weeks after the tick bite, by which time the tick has long dropped off and nobody ever saw it.
Yes, most dogs treated in time make a full recovery. The vet gives the treatment against the parasite; dogs with severe anaemia or kidney damage also need a drip, sometimes a transfusion and a few days in hospital. A case caught late is far harder to pull through. And a recovered dog can catch it again from the next tick.
Babesia canis does not pass from dog to person, nor from one dog to another through play or a shared bowl. It needs the tick. The exceptions are blood transfusions and, for some other Babesia species, deep bites between dogs. People can be infected by other Babesia species, again through ticks.
With a tick product that kills or repels ticks quickly, chosen with your own vet and renewed on schedule, especially in spring and autumn. After every outing into grass, run a hand through the coat from head to tail. In some countries there is also a vaccine that makes the disease milder; ask your vet whether it is available where you live.
The information on this page is educational and does not replace an examination. For full details and a diagnosis, consult your dog's own veterinarian.
They often come together: the same causes, plans that complement each other.
A hard bead with legs on his neck after the woods, or black specks on the sofa that turn red when wet. Both can be sorted out, and neither with oil or garlic.
Hot ears, a warm dry nose, a dog who will not get up for his walk. The nose tells you nothing. A thermometer tells you everything in under a minute.
You pick up the lead and nobody comes. He sleeps, leaves food in the bowl, ignores the ball. An off day or the first sign of illness; what comes with it decides.
A pink patch in the snow, a reddish drop on the tiles, marks on the sofa. What matters is when the blood shows in the stream and, above all, whether urine still flows.
We work with your dog's behaviour, not its health. For any sign described here, book an appointment with your own vet; the related services page explains how to choose a clinic.