Ticks in Dogs: Significance and Taxonomic Classification

What do ticks mean for dogs?

Ticks on dogs are blood-sucking arachnids (Acari) of the family Ixodidae that attach themselves to the skin, feed on blood, and can transmit various pathogens in the process. They are not insects, but are closely related to mites—with eight legs in the adult stage and a characteristic proboscis (hypostome) that burrows deep into the skin.

In Central Europe, three tick species are of particular clinical relevance to dogs: the common wood tick (Ixodes ricinus), the marsh tick (Dermacentor reticulatus), and the brown dog tick (Rhipicephalus sanguineus). They are vectors for a number of serious diseases—including borreliosis, anaplasmosis, babesiosis, and, more rarely, ehrlichiosis. Beugnet & Halos (2015) describe ticks in the ESCCAP overview as the most epidemiologically significant group of ectoparasites for dogs in Europe, with a clearly increasing prevalence due to climate change.

Background + Scientific Context

Ticks go through four life stages (egg, larva, nymph, adult) and require a blood meal at each stage. They wait at the edge of vegetation (“questing”) for passing hosts and become active upon contact. Today, their active periods largely span the entire year: ESCCAP data show that Ixodes ricinus is active as early as when ground temperatures reach 5–7 °C, with significantly extended seasonal windows over the past two decades.

Disease transmission is time-dependent. According to current data, Borrelia burgdorferi sensu lato requires approximately 16–48 hours of feeding time before pathogens are transmitted from the tick’s gut to the host (Eisen 2018). Anaplasma phagocytophilum can be transmitted more quickly—often within the first 24 hours. Babesia canis, primarily transmitted by Dermacentor reticulatus, can be transmitted after just a few hours of feeding, which is why riparian forest ticks are particularly feared. Cochez et al. (2012) documented the spread of Dermacentor reticulatus in Central Europe and the parallel increase in babesiosis prevalence.

Vitomalia-Position

We view ticks on dogs as a serious health risk that should be managed based on facts, not emotions. Regular check-ups, prompt removal, and a scientifically sound prevention plan are fundamental responsibilities. We recommend that dog owners consult with a veterinary practice to assess their individual risk situation (region, environment, dog) rather than blanketly dismissing or uncritically adopting any form of protection.

What we do not recommend: relying on amber necklaces, EM ceramics, or coconut oil as the sole form of protection. In a study on amber necklaces, Hutter et al. (2019) demonstrated that there is no detectable acaricidal or repellent effect. From a veterinary perspective, we also do not recommend twisting, turning, or squeezing the tick during removal.

When do ticks become a concern for dogs?

Ticks are of particular concern in several situations: for dogs that regularly spend time in forests, meadows, wetlands, or tall grass; when traveling to endemic regions (the Mediterranean region, Eastern Europe); for puppies and senior dogs with weaker immune systems; and for animals with chronic health conditions. The risk is also high in gardens—especially if wild animals frequent the area.

Practical application

Daily check: After every walk, especially on the head, neck, armpits, belly, inner thighs, and between the toes.
Safe removal: Place the tick tweezers or tick hook as close to the skin as possible, then pull straight out in a controlled motion. Do not twist, do not squeeze, and do not use oil or glue.
Mark the spot: Note the date and monitor the area for 4 weeks—redness, swelling, or a spreading rash are warning signs.
Choose a protection method: spot-on treatment, oral tablets, or Collars – consult with your veterinarian to make the right choice (see Tick Prevention).
If your pet shows symptoms such as fever, lethargy, lameness, loss of appetite, or dark urine, be sure to mention any history of tick bites during the veterinary examination.
Travel preparations: When traveling abroad, consider adding coverage for Mediterranean pathogens (ehrlichiosis, hepatozoonosis).

Common Mistakes & Myths

"Amber necklaces protect against ticks." Hutter et al. (2019) refuted this claim in a controlled study.
"Garlic protects dogs from ticks." False and dangerous—garlic can cause hemolysis in dogs.
"There are no ticks in winter." Wrong—Ixodes ricinus is active even when temperatures are just a few degrees above freezing. The year-round presence of ticks has been documented on multiple occasions.
"If the tick only feeds for a short time, nothing will happen." Babesia can be transmitted early on, and so can anaplasma. Removing the tick quickly reduces the risk, but does not eliminate it.
"You can twist ticks." Twisting or squeezing them increases the risk of tick intestinal contents entering the wound—which means the amount of pathogens increases.

State of the art in 2026

The evidence regarding the transmission of tick-borne diseases is robust (Beugnet & Halos 2015, Eisen 2018). Climate shifts are leading to an expansion of activity windows and distribution ranges—the riparian forest tick is spreading northward. Open questions concern the optimal testing strategy for asymptomatic dogs, the long-term effects of borreliosis vaccinations, and the evaluation of newer repellents and systemic agents (isoxazolines). The data on the development of resistance is continuously updated.

Frequently Asked Questions

Which ticks are particularly dangerous to dogs?

In particular, Ixodes ricinus (Lyme disease, TBE, anaplasmosis) and Dermacentor reticulatus (babesiosis). In the Mediterranean region, additional species and pathogens are also present.

How quickly do I need to remove a tick?

As soon as possible. Prompt removal significantly reduces the risk of transmission, though it does not eliminate it for some pathogens.

Should I have a removed tick tested?

Rarely useful. It makes more sense to observe the dog and perform a blood test if symptoms are present.

What's the best way to protect my dog?

A combination of checking for ticks, quickly removing them, and using a professionally recommended tick repellent.

Can ticks transfer to humans?

Yes. Ticks from dogs can also bite humans—hygiene and regular checks are important.

Related terms

Sources & Further Reading

Beugnet, F., & Halos, L. (2015). Parasitoses & Vector Borne Diseases of Cats and Dogs. ESCCAP / Merial.
Eisen, L. (2018). Pathogen transmission in relation to duration of attachment by Ixodes scapularis ticks. Ticks and Tick-borne Diseases, 9(3), 535-542.
Cochez, C., Lempereur, L., Madder, M., et al. (2012). Foci of Dermacentor reticulatus in Belgium. Veterinary Parasitology, 187(1-2), 245-249.
Hutter, S. E., et al. (2019). Efficacy of amber collars in prevention of tick infestation in dogs. Schweizer Archiv für Tierheilkunde.
ESCCAP Guideline No. 5: Control of Vector-Borne Diseases in Dogs and Cats.