Ticks on dogs: safe removal, diseases and prevention

You get home from a hike, run your hand over your dog's head and feel a small, hard bump behind the ear. Up close, it's a gray, swollen body with tiny legs. Finding ticks on dogs is common across much of the US, and what you do next matters: removing them quickly and correctly lowers the chance they pass on a disease.

This guide covers the right way to remove a tick, what to do afterward, which diseases ticks carry in the US and the symptoms to watch for, where and when the risk is highest, and how to prevent bites in the first place.

How to remove a tick from a dog, step by step

You'll need fine-tipped tweezers or a tick removal hook (sold at vet clinics and pet stores for a few dollars), disposable gloves and an antiseptic. Keep them in your dog first aid kit so they're on hand when you need them.

Put on gloves and have someone hold and calm your dog.
Part the fur until you can clearly see where the tick is attached.
Grasp it as close to the skin as possible, by the head and mouthparts rather than the swollen body, so you don't squeeze it.
Remove it:
- With tweezers, pull straight up with steady, even pressure. Don't twist or jerk.
- With a tick hook, slide the slot under the tick, rotate gently two or three times and lift.
Check that it came out whole; you should see its legs moving.
Clean the skin with an antiseptic and wash your hands well.
Save it in a sealed container with rubbing alcohol and write down the date. If your dog gets sick in the following weeks, it can help your vet.

What not to do: smother it with petroleum jelly, oil, alcohol or nail polish, burn it with a match, or crush it with your fingers. These tricks don't make the tick let go faster and can make it release saliva and gut contents into the wound, which is exactly what raises the risk of infection.

What to do after removing the tick

A small red bump at the bite site for a few days is normal; it's an inflammatory reaction. If part of the mouthparts stayed in the skin, don't dig with a needle or tweezers. The skin usually pushes it out on its own.

What matters most is watching your dog for the next four to six weeks, and keeping an eye out for lameness for several months. Some infections cause signs within one to two weeks; Lyme disease can take months. If you notice fever, lethargy or loss of appetite, tell your vet about the tick and when you found it. Here's how to tell if your dog has a fever at home.

How long the tick stays attached counts. The bacteria that cause Lyme disease generally need more than 24 hours of attachment to be transmitted, but others, such as Ehrlichia canis, can pass in just a few hours. That's why same-day tick checks and an effective preventive work best together.

Tick-borne diseases in dogs in the US

These are the main tick-borne diseases US vets see. A dog can have more than one at the same time, because a single tick can carry several organisms.

Disease	Main US tick(s)	Common signs in dogs
Lyme disease	Blacklegged (deer) tick; western blacklegged tick on the Pacific Coast	Most infected dogs show no signs; when they do: shifting-leg lameness, swollen joints, fever, often months after the bite; rarely, serious kidney disease
Ehrlichiosis	Brown dog tick, lone star tick	Fever, lethargy, poor appetite, weight loss, nosebleeds, bruising, swollen lymph nodes; can become chronic and severe
Anaplasmosis	Blacklegged tick, brown dog tick	Fever, lethargy, joint pain, lameness, low platelets
Rocky Mountain spotted fever	American dog tick, Rocky Mountain wood tick, brown dog tick in parts of the Southwest	Sudden fever, joint and muscle pain, swelling of the face or legs, tiny bleeds on gums or skin, vomiting; can be fatal
Babesiosis	Brown dog tick (some types also spread through dog bites)	Pale or yellow gums, weakness, dark or red-brown urine, fever
Tick paralysis	American dog tick, Rocky Mountain wood tick and others	Hind-leg weakness that moves forward; usually improves once the tick is removed

Vets usually confirm these infections with blood work: a complete blood count (low platelets are a common clue), blood smears, antibody tests or PCR. Many clinics run an in-house screening test at the annual exam that checks for heartworm along with exposure to Lyme disease, ehrlichiosis and anaplasmosis. Treatment depends on the disease, from specific antibiotics for the bacterial infections to antiprotozoal drugs for babesiosis and, in severe cases, hospitalization, IV fluids or transfusions. The earlier it's treated, the better the outlook.

If your dog starts limping for no obvious reason weeks after a tick bite, don't assume it's just a sprain; see our guide to dog limping and mention the tick to your vet.

Where and when ticks are most active

Ticks don't jump or drop from trees. They wait at the tips of grass and brush, a behavior called questing, and grab on as your dog brushes past. Risk is highest in tall grass, wooded trails, brushy field edges and areas with deer.

Which ticks you'll meet depends on where you live. Blacklegged ticks dominate in the Northeast, mid-Atlantic and upper Midwest; lone star ticks are common across the Southeast and East and are spreading north; American dog ticks are found over much of the country east of the Rockies; and brown dog ticks occur nationwide and can live indoors, in homes and kennels, where one female lays thousands of eggs in cracks and baseboards. Adult blacklegged ticks stay active on mild winter days, so cold months aren't automatically safe.

After every walk in tick habitat, check these spots with your hands, against the grain of the fur:

Ears, inside and out.
Around the eyes and eyelids.
Neck, especially under the collar or harness.
Armpits and groin.
Between the toes and around the paw pads.
Base of the tail and around the rear end.

How to prevent ticks on dogs

No single method is foolproof, so combine several:

A tick preventive, year-round as CAPC recommends for most of the US, or at least through tick season if your vet advises. Collars and some topicals repel ticks; chewables don't repel, but they kill ticks soon after they start feeding, before many infections are transmitted. Our guide on how often to deworm a dog explains how flea, tick and worm protection fit together.
Daily tick checks after time outdoors, especially on dogs with long or curly coats.
Stay on the trail. Walk in the middle of paths and keep your dog out of tall grass and brush. Planning longer outings? See our tips for hiking with your dog.
A less tick-friendly yard: mow regularly, clear leaf litter and create a gravel or mulch barrier between lawn and woods.
Protect every dog in the household. If brown dog ticks have moved indoors, you'll also need to treat the home, often with help from a pest control professional.
Ask about the Lyme vaccine. It's a lifestyle (non-core) vaccine for dogs in areas where Lyme disease is common; it complements tick control rather than replacing it. Your vet can fit it into the vaccination schedule.

Ticks, dogs and people

Ticks don't pass directly from your dog to you, but dogs can carry unattached ticks into the house that later bite a person. Your dog also works as a sentinel: a positive Lyme or ehrlichiosis test means infected ticks are in the places you walk together. Wear gloves when removing ticks, never crush them with bare fingers, and check yourself after time outdoors.

Frequently asked questions

What happens if the tick's head stays in my dog's skin?

What stays behind is usually part of the mouthparts, not the whole head. Don't dig for it, since that damages the skin more. Clean the area twice a day and let the body push it out, which usually happens within a few days. Call your vet if the spot swells, oozes, seems painful or hasn't improved within a week or two.

Should I take my dog to the vet after removing a tick?

Not necessarily, if you removed the whole tick and your dog seems fine. Testing on the same day isn't very useful either, because antibodies take weeks to show up. What helps is watching your dog closely over the following month and going in if you see fever, lethargy, poor appetite, lameness or dark urine, along with the date of the bite.

Can ticks jump from one dog to another?

Ticks can't jump, but they can drop off one dog, crawl across the floor or a bed and climb onto another pet or a person. The brown dog tick can even complete its entire life cycle indoors. If one dog in the house keeps getting ticks, check and protect every pet, and inspect the places where they sleep.

Do natural tick repellents work?

There's no good evidence that garlic, apple cider vinegar or essential oil sprays reliably protect dogs from ticks, and some oils can irritate the skin or poison dogs and especially cats. Since tick-borne diseases can be serious, the safest approach is an approved preventive combined with checking your dog after every outing.

Can my dog get Lyme disease or ehrlichiosis more than once?

Yes. Recovering from an infection doesn't provide lasting immunity, and some dogs remain carriers and can relapse months or years later, especially if their immune system is weakened. After one of these infections, tick prevention should be even stricter, and your vet may recommend periodic follow-up blood work.

Sources

Companion Animal Parasite Council (CAPC): tick control recommendations and tick-borne disease information.
Centers for Disease Control and Prevention (CDC): tick removal guidance and regional distribution of US ticks.
Merck Veterinary Manual: Lyme disease, ehrlichiosis, anaplasmosis, Rocky Mountain spotted fever and babesiosis in dogs.
American Animal Hospital Association (AAHA): canine vaccination guidelines, Lyme vaccine.

This article is for information only and is not a substitute for a veterinary exam. If your dog gets worse, is in pain or shows warning signs, call your vet or an emergency animal hospital.