Dogs
Tick fever in dogs: what Coimbatore owners need to know
Dr Nitin Kumar R · 23 August 2026
What tick fever actually is
Tick fever isn't one disease. It's a group of infections carried by the brown dog tick, the flat brown one you find around the ears, between the toes and under the collar. When it feeds it can pass on organisms that attack the blood. Usually Ehrlichia, Babesia or Anaplasma.
They do different damage. Ehrlichia destroys platelets, the cells that let blood clot. Babesia destroys red cells, which causes anaemia. A dog can have both at once. That is one reason treating on guesswork goes wrong so often.
Why it's so common here
The brown dog tick likes warm weather and it lives indoors quite happily. In floor cracks, behind skirting, in kennel bedding. Our climate suits it all year and we see more of it after the rains.
That indoor habit is the part people miss. They treat the dog and not the house. The dog clears up, then picks it up again from its own bedding inside a fortnight.
Signs owners notice — and signs they miss
The obvious ones:
- Fever, often coming and going rather than staying high
- Off food, sometimes completely
- Dull, sleeping more, not interested in a walk
The ones that get missed, and matter more:
- Pale gums. Lift the lip and look. Healthy gums are pink. White or very pale pink means anaemia and needs to be seen today.
- Nosebleeds, or tiny red spots on the gums, belly or inside the ears. These are burst capillaries — a sign platelets have crashed.
- Dark or coffee-coloured urine. Suggests red cells are breaking down.
- Weight loss over a few weeks with no other explanation. The chronic form of ehrlichiosis is quiet and slow, and dogs are often brought in months late.
A dog can have no ticks on it at all and still have tick fever. One tick, weeks ago, is enough. We hear "but I checked, there are no ticks" almost every week and it rules nothing out.
Come in the same day if the gums are pale, there is blood from the nose, the urine has gone dark, or the dog will not stand up. These are not wait-and-see signs.
Why we take blood before we treat
A fever in a dog could be tick fever or it could be five other things. Start a broad antibiotic without looking and you can spend a week treating the wrong thing while the platelet count keeps dropping.
So we run a blood count and look at a stained smear under the microscope. The count tells us how far the platelets or red cells have fallen, which is what decides how urgent it is. The smear can show the organisms. Both are done in our own lab, so you usually have the result before you leave.
Where the picture is unclear, or where treatment hasn't worked as expected, more specific testing is available and we'll arrange it.
Treatment, in general terms
Which medicine depends on which organism, which is why the diagnosis comes first. Ehrlichia and Anaplasma need a particular antibiotic for several weeks. Babesia needs a different drug altogether. A badly anaemic dog sometimes needs a transfusion before anything else. We have done those here.
We haven't put doses here, deliberately. The dose depends on weight, on kidney and liver values, and on what else the dog is taking. These drugs are not forgiving. Please don't buy them over the counter because a neighbour said so.
Two things owners get wrong at this stage:
- Stopping early. The dog looks fine after five days. The course is much longer than five days. Stopping early is how the chronic form starts.
- Skipping the recheck. We repeat the blood count to confirm the platelets have actually recovered. A dog can look well with a count that is still dangerous.
Preventing it properly
Prevention works far better than any treatment. There are two halves to it and both have to happen.
On the dog: a proper tick preventive, used at the right interval and not stretched out to save money. Spot-ons, tablets and collars all exist. Ask us which suits your dog, because some aren't safe in puppies and some aren't safe around cats in the same house.
In the house: wash the bedding and put it in the sun, scrub the corners and cracks where the dog sleeps, treat the kennel or terrace floor. If you have several dogs, do all of them on the same day.
Never pull a tick off with bare fingers or burn it. Use a tick remover or blunt tweezers, grip it close to the skin and pull straight out.
When to call us
If your dog has been off food more than a day, has a fever, or you've found ticks on it recently, bring it in. A blood count is a small thing and it settles the question.
This article is general information for pet owners. It is not a diagnosis and does not replace an examination. If your animal is unwell, please have it seen.