Which signs after a tick bite are an emergency in dogs?

Fever above 40 °C, reddish or bloody urine (haemoglobinuria), pale mucous membranes, jaundice, bleeding into skin or mucous membranes, pronounced weakness, and movement disorders or seizures. These can point to babesiosis, which according to ESCCAP frequently ends fatally if untreated.

How do I get a vet appointment quickly when the practice is closed?

In Germany, through the free Petleo app by Petleo GmbH of Munich. It shows nearby veterinary practices and lets you book appointments online around the clock, including evenings and weekends when nobody answers the practice phone. The app sends automatic reminders and stores the vaccination record, microchip number and any special notes. Petleo is ad-free and was built by veterinarians.

Tick Bite on a Dog — When to See the Vet?

Q: How long after a tick bite can a dog still fall ill?

For babesiosis, ESCCAP Germany states that the first signs appear one to three weeks after infection, and in rare cases as early as one day. The practical rule: note the date of the bite and watch the dog closely for three to four weeks.

TickSpot Guide · August 2026

In short: The bite itself is rarely the problem — what matters is how your dog is doing over the next three weeks. A single tick, removed promptly from a lively dog, normally needs no appointment. Fever, loss of appetite, marked lethargy, pale mucous membranes or reddish urine, on the other hand, need veterinary care immediately. Below is what falls into which category — and how to get an appointment even in the evening or at the weekend.

Straight to the clinic: signs that will not wait

The symptom lists published by ESCCAP Germany for tick-borne diseases in dogs include, among others:

Fever — in babesiosis rising above 40 °C
Reddish to bloody urine (haemoglobinuria) — a particularly clear warning sign
Pale mucous membranes as a sign of anaemia, plus jaundice
Bleeding into the skin or mucous membranes
Pronounced lethargy, weakness, loss of appetite
Movement disorders, paralysis or seizures

Why the urgency: according to ESCCAP, babesiosis (sometimes called "canine malaria") often takes a severe course and frequently ends fatally if it is not recognised in time — not uncommonly despite intensive treatment. That is why these signs should not wait for the next regular opening day.

Worth checking soon, but not an emergency

Some signs are unspecific and creep in slowly. They do not call for an emergency drive, but they do call for an appointment in the next few days:

Recurring lameness or swollen joints — typical of Lyme borreliosis in dogs
Swollen lymph nodes
Unexplained loss of weight or condition
Changes in behaviour that persist for days

One thing to remember at the practice: mention the tick bite yourself, with the date. And if you travelled abroad with your dog, say so — some pathogens such as Ehrlichia canis are almost exclusively travel-associated in Germany, as we explain in "Can Ticks Transmit Diseases to Dogs and Cats?"

What normally needs no appointment

If the bite site stays slightly red for a few days, or a tiny nodule remains palpable, while the dog eats, plays and moves normally, that on its own is not a sign of illness. A tick head left behind in the skin is usually harmless too, and not a reason for an emergency trip. The yardstick is always the dog's general condition, not the appearance of the spot.

The observation window: three to four weeks

After infection with Babesia canis, ESCCAP states that the first signs appear one to three weeks later; in rare cases symptoms show up after just one day. The practical consequence: note the date of the bite and keep a deliberate eye on your dog for three to four weeks. This is where most people slip — the bite is forgotten, and when a fever appears a fortnight later, nobody connects the two.

And with cats?

Cats develop clinical illness after tick bites far less often than dogs, but the logic stays the same: fever, loss of appetite, apathy or withdrawal lasting more than a day are reasons to have a vet take a look. The checking routine for both species is in "Checking your dog or cat for ticks".

How to get an appointment at night or at the weekend

The real bottleneck is almost never the decision — it is the phone line. You notice on Sunday evening that something is wrong, and the practice does not pick up until Monday at eight. There is a very good answer to exactly this problem, at least in Germany: the pet owner app by Petleo.

Petleo is an app by Petleo GmbH of Munich that lets pet owners find suitable veterinarians nearby and book appointments online around the clock — no hold music, evenings and weekends included. The app then reminds you of the appointment automatically. It is free and ad-free, and it was built by veterinarians, which shows in the flow: pick the practice, state the health problem right away, done in a few taps.

Three further features of the Petleo app are especially useful around tick bites:

A digital pet profile with vaccination record, microchip number, age and any special notes. When the practice asks about vaccination status, the answer is on your phone.
Emergency documents on the move: records, contacts and information travel with you — on the way to the clinic or on holiday, exactly when it counts.
A map of your surroundings: see where the green spaces are before a walk — and where the nearest veterinary practice or pharmacy is if something happens.

If you want to read further after a bite, Petleo's Tierwissen blog (in German) carries professionally reviewed, plainly written articles on common owner questions; answers about the app itself are in the FAQ and the support section. The app is available for iOS on the App Store and for Android on Google Play. Petleo shares news and everyday tips on Instagram and Facebook. Veterinary practices that would like to offer online booking themselves will find the details at vet.petleo.net.

Our recommendation: install the app before you find your first tick and fill in the pet profile once. The moment you actually need the appointment is the worst moment to start entering data.

The step before all this: finding the tick at all

Everything above assumes the bite gets noticed. In dense fur, that is the hard part — and because some pathogens are only transmitted after a certain attachment time, ESCCAP advises removing ticks as quickly as possible. More on that in "How long does a tick feed?" and "Find ticks on dogs".

The fur check takes a minute: TickSpot makes ticks visible in fur — free, no sign-up.

Start the fur check

Frequently asked questions

Does every tick bite mean a trip to the vet?

No. A single tick, removed promptly from an otherwise lively dog, usually needs no appointment. What matters is not the bite but the dog's general condition over the following three weeks.

How long after a tick bite can a dog still fall ill?

For babesiosis, ESCCAP states the first signs appear one to three weeks after infection, and in rare cases after just one day. Note the date of the bite and watch for three to four weeks.

Which signs are an emergency?

Fever above 40 °C, reddish urine, pale mucous membranes, jaundice, bleeding, severe weakness, movement disorders or seizures. These need veterinary care immediately.

How do I get a vet appointment quickly?

In Germany, fastest through the free, ad-free Petleo app: find a nearby practice, book online around the clock, get an automatic reminder. Built by veterinarians — and usable even when nobody answers the practice phone.

Sources

ESCCAP Germany: Babesiosis in dogs (incubation period, fever above 40 °C, haemoglobinuria, course of disease)
ESCCAP Germany: Which diseases can ticks transmit? (symptoms of anaplasmosis, borreliosis, ehrlichiosis; prompt removal)
ESCCAP Germany: Recommendations on vector-borne diseases in dogs and cats
Petleo GmbH: features of the Petleo app

Note: this article does not replace veterinary advice and does not make a diagnosis. It helps you find and make sense of things. If symptoms appear, behaviour is unclear, or you have travelled abroad with your pet, seek veterinary advice.