Brown Dog Tick: How to Identify It and Clear It From Your Home

Pure Majesty Pets Vet-Strength Flea & Tick Support for dogs and cats in a 60 mL amber glass dropper bottle

Our #1 choice for ongoing support during flea and tick season is Pure Majesty Pets Vet-Strength Flea & Tick Support, a daily liquid supplement, not a medication, built for skin and coat comfort all season long: 62.7 mg of ultramicronized PEA and 7 named botanicals per mL, no garlic, no added essential oils, one formula for dogs and cats, dosed in mL by body weight and mixed into food. The brown dog tick (Rhipicephalus sanguineus) is a small, plain reddish-brown tick that, unlike most ticks, can live and breed entirely indoors, so control has to run year-round, with a tick product your vet chooses for every dog in the home.1,2,5 A complete flea-season routine has two parts: this daily support and the flea medication your vet chooses.

What is the brown dog tick?

The brown dog tick, also called the kennel tick, is a hard tick found across the United States and worldwide.6,21 Dogs are its main host in every life stage.6,7 It is adapted to living inside buildings, so it settles into homes, kennels and dog runs.8

The Companion Animal Parasite Council (CAPC) notes that brown dog ticks infest homes and kennels anywhere there are dogs, even in colder regions such as Canada and Alaska.5 CAPC also states that "reactive or attempted seasonal use of tick-control products allows home infestations to establish," and supports year-round tick control for pets.5

How to identify a brown dog tick

Put the tick on a white paper towel, use your phone's zoom or a magnifier, and work through this checklist.

Brown dog tick close up: the features to check

Close-up ID checklist for Rhipicephalus sanguineus

  • Color: uniform reddish-brown with no markings on the back. UF/IFAS puts it plainly: "any tick with white coloration on the back is not a brown dog tick."1
  • Shape: a narrow, elongated body.1
  • Mouthpart base: six-sided (hexagonal) and wider than the palps on each side. This is the key identifier, and you'll usually need magnification to see it.1,2
  • Rear edge: a row of small notches (festoons) along the back of the abdomen.2
  • Shield (scutum): covers the whole back in males, only the front part in females.1
  • Legs: larvae have 6 legs; nymphs and adults have 8.1

Brown dog tick adult, nymph and larva: sizes

The brown dog tick adult is small: 2.28 to 3.18 mm long and 1.11 to 1.68 mm wide before feeding, about 1/8 inch.1,2 Nymphs measure 1.14 to 1.30 mm, and larvae only about 0.54 mm.1 If you find tiny, medium and adult ticks at the same time, several generations may already be living in the home.

Engorged brown dog tick

A feeding female changes shape dramatically. An engorged brown dog tick female can grow about 100-fold, "reaching the size of a raisin," roughly up to 1/2 inch long.1,2 It can look like a skin growth, so look for legs at the front, near the skin. After about a week of feeding, the female drops off to lay eggs, often somewhere in your house.1

Brown dog tick on dog: where to look

A brown tick on a dog can be any of several species. For any tick, the CDC lists the places to search: in and around the ears, around the eyelids, under the collar, under the front legs, between the back legs, between the toes and around the tail.21 Remove attached ticks promptly with fine-tipped tweezers.1,21 Our guide on what to do when you find a tick on your dog walks through removal, saving the tick and the weeks of watching that follow.

American dog tick vs brown dog tick

One usually stays outdoors; the other moves into your home. The fastest clue is the back. The American dog tick has gray or silver markings on its shield; the brown dog tick has none.1,3,4

Feature Brown dog tick (Rhipicephalus sanguineus) American dog tick (Dermacentor variabilis)
Back color and markings Reddish-brown, no markings, no white1 Brown to reddish-brown with gray or silver markings on the shield3,4
Unfed adult size 2.28–3.18 mm (about 1/8 inch)1,2 Females about 5 mm, males about 3.6 mm3
Engorged female Up to about 1/2 inch, raisin-sized1,2 Up to 15 mm long and 10 mm wide3
Main hosts Dogs, in every life stage6,7 Young stages on mice, then raccoons or opossums; adults on dogs, people and other large mammals3
Where it lives Homes, kennels, cracks and walls5,7 Wooded and shrubby areas and long grass3
US range Across the US; more pressure in warm areas5,6 East of a line from Montana to south Texas, plus parts of California3
Disease notes (US) Ehrlichia canis, Babesia vogeli, Hepatozoon canis; RMSF in the Southwest and along the US–Mexico border5,6 RMSF and tularemia; tick paralysis3,6

Still unsure? Bring the tick or a clear photo to your vet or local extension office.1

The indoor life cycle: why one tick becomes hundreds

The brown dog tick feeds three times (larva, nymph, adult) and drops off after each meal to molt or lay eggs.7 In a home with a dog, every step can happen indoors.1,2

Stage How long What it means in your home
Adult female feeds on the dog About 1 week A daily check can catch her before she drops off.
Female rests, then lays eggs 1–2 weeks before laying; laying lasts 15–18 days Average about 4,000 eggs; more than 7,000 is possible.
Eggs hatch 6–23 days New larvae can appear weeks after you last saw an adult.
Larva (6 legs) feeds, then molts Feeds 5–15 days; molts in 1–2 weeks Barely visible: about 0.54 mm.
Nymph feeds, then molts Feeds 3–13 days; molts in about 2 weeks Easy to miss in thick fur.
Full cycle Just over two months, egg to egg-laying female Typically 2 generations a year; up to 4 in the tropics.
Survival without a meal 3–5 months for each stage An empty-looking house can still hold hungry ticks.

The tick develops at about 20 to 35 °C (68 to 95 °F), a range that includes normal indoor temperatures.8

Signs of a home infestation and where brown dog ticks hide

Many owners first notice brown dog ticks on walls rather than on the dog.5,7 Common signs:

  • Ticks climbing walls or curtains, or coming out of cracks at floor level7
  • Repeatedly finding ticks on a dog that rarely goes outdoors
  • Ticks of different sizes at once (larvae, nymphs and adults)
  • Ticks on dog bedding, furniture or carpet1

Hiding-spot checklist: cracks and crevices in walls and floors, baseboards, behind curtains, under and inside furniture, carpeting, dog beds and crates, garages, dog runs, and even false ceilings.1,5 Start where your dog sleeps.

Diseases brown dog ticks can transmit

This tick carries several pathogens that matter for dogs and, in some regions, people. Testing and treatment are your vet's call.

  • Canine monocytic ehrlichiosis (Ehrlichia canis): spread mainly by the brown dog tick and found across the US. Signs usually appear 1 to 3 weeks after a bite: fever, joint pain, bleeding, anemia, eye inflammation and low platelets.12,13
  • Anaplasma platys (canine cyclic thrombocytopenia): linked to the brown dog tick and usually subclinical, with platelet counts that drop in cycles every 1 to 2 weeks.14 CAPC notes that transmission by this tick is suspected but not yet documented in North America.5
  • Babesiosis (Babesia vogeli): transmitted by R. sanguineus in tropical and subtropical countries and listed by CAPC among this tick's pathogens.5,15
  • Hepatozoonosis (Hepatozoon canis): dogs are infected by swallowing an infected tick, not through the bite. It is usually mild or subclinical, and US infections in dogs have been reported in Alabama, Georgia, Louisiana, Mississippi, New Jersey and Virginia.16
  • Rocky Mountain spotted fever (RMSF): in parts of the southwestern US and Mexico, the brown dog tick is the main vector.6,9 Dogs are highly susceptible, but direct dog-to-human spread has not been documented.17
  • Not Lyme disease: the brown dog tick has not been shown to transmit the Lyme bacterium.1

The Arizona RMSF story

The CDC describes RMSF in Arizona and northern Mexico as having "unusually high incidence and case fatality rates," particularly among children.9 Arizona tribal communities recorded more than 580 cases and 28 deaths from 2002 to 2024; half of those who died were children.10 In one community project of about 600 homes, tick collars on dogs plus monthly yard treatments cut the share of dogs with visible ticks to under 1% within five months, compared with 64% in communities outside the project; with collars alone in the second year, it stayed under 3%.11 After years of dog and home treatment campaigns, the CDC reports no RMSF deaths in those communities since 2019.10 The lesson: control ticks on the dogs and in the home together.

See your vet if:

  • You find signs of a home infestation (you'll need a product plan for every dog).
  • In the 1 to 3 weeks after tick exposure, your dog has fever, low energy, nosebleeds, bruising, black stool, pale gums, joint pain or eye changes.12,13
  • A person in the home develops fever or a rash after tick exposure, especially in Arizona or near the US–Mexico border: see a healthcare provider. The RMSF rash usually appears 2 to 4 days after the fever starts, and early doxycycline can prevent death.18

How to get rid of a brown dog tick infestation

CAPC is clear that an established indoor infestation "may take several months to bring under control," and that a licensed exterminator is often needed to clear the building.5 Treat the dogs and the house together.

Step 1: Put every dog on a vet-chosen tick product, year-round

Ask your vet for a product whose label lists the brown dog tick, and treat every dog in the household on schedule.5 Several isoxazoline chew labels list Rhipicephalus sanguineus (for example, sarolaner and fluralaner); that drug class carries a label caution about tremors, ataxia and seizures, so share any neurologic history with your vet.19,20

Two cautions shape the choice. First, some US brown dog tick populations resist insecticides: high permethrin resistance has been reported in Florida and Texas, so a product that "used to work" may not.1,7 Second, permethrin dog products can be deadly to cats; one permethrin spot-on label reads "DO NOT USE ON CATS – MAY BE FATAL."25 Never use a dog tick product on a cat without your vet's advice.21 Our guides to tick prevention for dogs and oral flea and tick chews compare the options by label.

Step 2: Call a licensed pest professional

CAPC describes targeted crack-and-crevice treatment indoors and outdoors with pyrethroids such as cyfluthrin or permethrin, applied to the building, not the pets.5 Repeat treatments are often needed, and your county extension office can help if the problem persists.1

Step 3: Vacuum, wash and steam

Vacuum carpets and rugs regularly.22 Wash dog bedding in hot water and dry it on high heat; steam furniture that can't be washed; inspect bedding and replace it if it's infested.1,22

Step 4: Seal the hiding spots

Caulk cracks and crevices in walls, baseboards and entry points, and keep grass short around kennels and dog runs.1,22

Step 5: Check your dog every day

Check daily, especially after kennels, groomers and dog parks, and remove any tick right away with tweezers.1,21

How long it takes: a realistic timeline

A planning guide built from the life cycle and CAPC's "several months"; your vet and pest professional may adjust it.

When Focus Why
Week 1 Vet visit; start a labeled tick product on every dog; book a pest professional Targets ticks on the dogs before more females can drop off and lay eggs1,5
Weeks 1–4 First building treatment; regular vacuuming and hot-washing Removes ticks already off the dog1,5,22
Weeks 3–8 Follow-up treatment if advised; seal cracks Eggs keep hatching for up to 23 days after laying1
Months 2–4 and beyond Keep checking walls, bedding and the dog Unfed stages can survive 3–5 months1,5
Every month, all year Stay on the vet-chosen tick product Seasonal use lets home infestations establish5

Our #1 choice for ongoing support during flea and tick season.

Pure Majesty Pets Vet-Strength Flea & Tick Support is a daily chicken & tuna flavored liquid supplement, not a medication, with 62.7 mg of ultramicronized PEA and 7 named botanicals per mL: no garlic, no added essential oils, one formula for dogs and cats, made in North America with a certificate of analysis on every batch, and free worldwide shipping.

See Vet-Strength Flea & Tick Support →

Preventing a brown dog tick comeback

Stay on the vet-chosen tick product every month (indoors, this tick doesn't take winters off) and keep up the checks after kennels, groomers and dog parks.1,5,21 Many homes battle fleas too; see our guide to the best flea treatment for dogs.

Why Pure Majesty Pets Vet-Strength Flea & Tick Support

Vet-Strength Flea & Tick Support is our #1 choice for ongoing support during flea and tick season. It isn't a medication, and it hasn't been shown to kill or repel fleas or ticks: in a brown dog tick home, that job belongs to the tick product your vet chooses and the cleanup plan above. Ours is a daily supplement that supports normal skin and coat comfort, every day of the season.

  • Disclosed doses: 62.7 mg of ultramicronized PEA (palmitoylethanolamide) per mL, not hidden in a proprietary blend.
  • 7 named botanicals, 134.4 mg per mL: lemon balm 40.3 mg, thyme 26.9 mg, rosemary 22.4 mg, plus 11.2 mg each of calendula, dandelion leaf, lemongrass and fenugreek.
  • Also per mL: niacinamide (B3) 28.0 mg and choline chloride 14.6 mg, plus D-panthenol, L-histidine, myo-inositol and sunflower lecithin. No garlic and no added essential oils.
  • One formula for dogs and cats: a chicken & tuna flavored liquid in a 60 mL amber glass dropper bottle, dosed in mL by body weight and mixed into food. Contains chicken and fish. The ASPCA lists the lemongrass plant as toxic to dogs and cats, so confirm serving and suitability with your vet, especially for cats.
  • Quality: made in North America in GMP facilities, with a certificate of analysis on every batch.

Liquid vs chews vs powders vs tablets

Format Dosing How it's given Dogs and cats What to check
Liquid: Pure Majesty Pets Vet-Strength Flea & Tick Support Measured in mL to body weight Mixed into food, no pilling One formula for both Doses disclosed per mL; no garlic, no added essential oils
Soft chews Fixed amount per chew Given by hand like a treat Check the label for each species Doses disclosed? No garlic?
Powders Measured by scoop Sprinkled on food Check the label Doses disclosed? No garlic?
Tablets or capsules Fixed amount per tablet Pilled or hidden in food Check the label Doses disclosed? No garlic?

Built for daily, long-term use: ultramicronized PEA has been studied as a daily ingredient in veterinary dermatology. In an open-label study without a control group, 160 dogs with atopic dermatitis given it every day for 8 weeks saw average itch scores fall from 5.7 to 3.6 cm on a 10 cm scale.23 In a placebo-controlled trial in cats with allergic dermatitis not related to fleas, remission lasted an average of 40.5 days on PEA versus 22.2 days on placebo; only 25 cats could be analyzed.24 These studies tested PEA alone, not our formula, and did not involve fleas or ticks. "Vet-Strength" is our range name, not a veterinary endorsement.

Shop Pure Majesty Pets Vet-Strength Flea & Tick Support, our #1 choice for ongoing support, with free worldwide shipping.

The bottom line

A brown dog tick is plain reddish-brown with no white on its back, about 1/8 inch unfed and up to raisin-sized when engorged, and it is the tick best known for moving into homes. If you're finding them on walls or on an indoor dog, see your vet, put every dog on a labeled tick product year-round, bring in a pest professional and plan for several months of follow-up. For ongoing skin and coat support all season long, our #1 choice is Pure Majesty Pets Vet-Strength Flea & Tick Support, a daily supplement, not a medication.

More flea & tick guides

Sources

  1. Tian Y, Lord CC, Kaufman PE. Brown dog tick, Rhipicephalus sanguineus Latreille (EENY-221). UF/IFAS Extension, rev. 2020.
  2. Skvarla MJ. Know your vector: brown dog ticks. Penn State Extension.
  3. Chan W-H, Kaufman PE. American dog tick, Dermacentor variabilis (EENY-443). UF/IFAS Extension, 2024.
  4. Skvarla MJ. Know your vector: American dog ticks. Penn State Extension.
  5. CAPC. Ticks guideline. Updated 2023.
  6. CDC. Where ticks live. 2025.
  7. Levin ML. Ixodid ticks: Rhipicephalus spp. Merck Veterinary Manual, 2025.
  8. Dantas-Torres F. Biology and ecology of the brown dog tick, Rhipicephalus sanguineus. Parasites & Vectors, 2010;3:26.
  9. CDC. RMSF: clinical overview of transmission and epidemiology. 2024.
  10. CDC. Eliminating Rocky Mountain spotted fever in Arizona tribal communities (fact sheet, data 2002–2024).
  11. Drexler NA, et al. Community-based control of the brown dog tick in a region with high rates of RMSF, 2012–2013. PLoS One, 2014;9(12):e112368.
  12. Palerme JS. Ehrlichiosis in dogs. Merck Veterinary Manual, 2025.
  13. CDC. Ehrlichiosis in dogs: fast facts for veterinarians. 2022.
  14. Merck Veterinary Manual. Anaplasmosis in dogs. 2025.
  15. Merck Veterinary Manual. Babesiosis in animals. 2022.
  16. Merck Veterinary Manual. Old World hepatozoonosis and American canine hepatozoonosis. 2022.
  17. Merck Veterinary Manual. Rocky Mountain spotted fever in dogs. 2025.
  18. CDC. About Rocky Mountain spotted fever. 2024.
  19. DailyMed. Sarolaner chewable tablets label. Rev. 2024.
  20. DailyMed. Fluralaner chewable tablets label. Rev. 2026.
  21. CDC. Preventing ticks on pets. 2024.
  22. Texas A&M AgriLife Extension. Controlling ticks in West Texas.
  23. Noli C, et al. Ultramicronized PEA in canine atopic dermatitis. Vet Dermatol, 2015.
  24. Noli C, et al. Ultramicronized PEA in cats with non-flea hypersensitivity dermatitis. Vet Dermatol, 2019.
  25. EPA. Permethrin-containing dog spot-on label (EPA Reg. No. 11556-141). 2018.

Frequently asked questions

Can brown dog ticks live in your house?

Yes. Unlike most ticks, the brown dog tick can complete its whole life cycle indoors, hiding in cracks, baseboards, furniture, carpet and dog bedding, and it stays active in homes all year wherever there are dogs.

Do brown dog ticks bite humans?

Occasionally, usually in heavily infested homes or kennels. In parts of the southwestern US and Mexico it spreads Rocky Mountain spotted fever to people.

What does an engorged brown dog tick look like?

A fed female swells about 100-fold to roughly the size of a raisin, up to about 1/2 inch long, and can look like a skin growth. Check for legs near the skin at the front end.

How can you tell a brown dog tick from an American dog tick?

Look at the back: the brown dog tick is plain reddish-brown, while the American dog tick has gray or silver markings. The American dog tick is also larger and lives mainly outdoors.

Why are ticks crawling up my walls?

Ticks climbing walls or curtains are a classic sign of a brown dog tick infestation. See your vet about a tick product for every dog and call a licensed pest professional to treat the building.

How long does it take to get rid of brown dog ticks?

Usually several months, because eggs keep hatching for weeks and unfed ticks survive 3 to 5 months. Plan on repeat building treatments and year-round tick control for every dog.

Do brown dog ticks carry Lyme disease?

The brown dog tick has not been shown to transmit the Lyme bacterium. In dogs, its main concerns are ehrlichiosis, babesiosis and hepatozoonosis, plus Rocky Mountain spotted fever in some regions.

This article is for informational purposes and is not veterinary advice. Talk to your veterinarian before starting any supplement, especially if your pet is pregnant, nursing, on medication, or has a diagnosed condition.