Once you’ve pulled a tick off your dog, your immediate next steps are to clean the bite site, dispose of the tick properly, and watch your dog for signs of tick-borne illness over the following weeks. Most tick bites don’t cause serious problems, but a little attention now can prevent complications later.
Clean the Bite Site Right Away
Wash the bite wound and your hands with soap and water, then apply rubbing alcohol or an antiseptic directly to the spot where the tick was attached. This reduces the chance of a skin infection at the puncture site. You may notice a small red bump or mild irritation for a day or two, which is a normal reaction to the bite itself and not necessarily a sign of disease.
Don’t Dig Out Leftover Mouthparts
If a small piece of the tick’s head or mouthparts broke off and stayed embedded in your dog’s skin, resist the urge to go back in with tweezers. Picking at the site irritates the skin and raises the risk of infection. The remaining fragment will work its way out on its own over a few days, much like a splinter. Your dog probably won’t even notice it’s there.
If the area around the leftover piece becomes increasingly red, swollen, or starts oozing after a couple of days, that’s worth a vet visit for a possible skin infection. But in most cases, leaving it alone is the right call.
Save or Dispose of the Tick
You have two good options. If you want to identify the tick later (more on why that matters below), drop it into a small sealed container or zip-lock bag with a bit of rubbing alcohol. Note the date you removed it. If you’d rather just get rid of it, you can fold it into a piece of tape, submerge it in alcohol, or flush it down the toilet. Don’t crush a tick with your fingers, since that can expose you to the same pathogens it may carry.
Why the Type of Tick Matters
Different tick species carry different diseases, so identifying what bit your dog helps your vet know what to test for. The two most common ticks found on dogs in North America look quite different once you know what to look for.
- Deer ticks are small (about the size of a sesame seed before feeding) with a dark, solid-colored back shield and no visible pattern. They have long, narrow mouthparts and no eyes. Deer ticks transmit Lyme disease and anaplasmosis.
- American dog ticks are larger, with a distinctive silvery-white lacy pattern on their back. Their mouthparts are short and broad, and they have visible eyes. Dog ticks carry Rocky Mountain spotted fever and other rickettsial diseases.
If you saved the tick, your vet can help with identification. You can also compare it to photos from your state’s extension service or a tick identification resource online.
Watch Your Dog for These Symptoms
Tick-borne diseases don’t show up immediately. Symptoms typically appear anywhere from a few days to several weeks after the bite, so you’ll need to pay attention to your dog’s behavior and energy levels for at least a month. The specific warning signs depend on the disease, but several patterns overlap.
Lyme disease causes stiffness, lameness, swollen joints, loss of appetite, fever, and fatigue. Dogs don’t always develop the bullseye rash that humans get, so joint stiffness and limping are often the first noticeable clues.
Ehrlichiosis shows up as fever, loss of appetite, weight loss, depression, runny eyes and nose, nosebleeds, or swollen limbs. Anaplasmosis looks similar: fever, stiff joints, lethargy, loss of appetite, and sometimes vomiting or diarrhea. In severe cases, anaplasmosis can cause seizures.
Rocky Mountain spotted fever brings fever, stiffness, skin lesions, and neurological problems. It typically runs about two weeks, but serious cases can be fatal without treatment. Babesiosis causes anemia, so watch for pale gums, weakness, and vomiting.
The common thread across nearly all tick-borne illnesses is some combination of fever, loss of appetite, and lethargy. If your normally energetic dog becomes listless, stops eating, or develops a limp in the weeks after a tick bite, get to the vet promptly.
When and How to Test for Tick-Borne Disease
Antibody tests for tick-borne diseases need time to become accurate. Your dog’s immune system has to produce enough antibodies for a test to detect them, and that doesn’t happen overnight. For Lyme disease, newer testing methods developed at Cornell can detect antibodies as early as two to three weeks after infection. Older test formats required four to six weeks. For most tick-borne diseases, testing before the three-week mark is likely to produce a false negative.
Your vet may recommend a screening test (often called a 4Dx test) that checks for multiple tick-borne diseases at once, including Lyme, ehrlichiosis, and anaplasmosis. If your dog was bitten by a deer tick, many vets will suggest testing around four to six weeks post-bite even if your dog seems fine, since some infections can be present without obvious symptoms early on.
If your dog does test positive, early treatment is straightforward and highly effective in most cases. The longer an infection goes untreated, the harder it becomes to manage, which is why proactive testing matters even when your dog looks healthy.
Prevent the Next Tick Bite
Finding a tick on your dog is a good reminder to evaluate your prevention strategy. Dogs are highly susceptible to tick bites and tick-borne diseases, and vaccines aren’t available for most of these illnesses. Year-round tick prevention is the most reliable protection.
Talk to your vet about the best preventive product for your dog. Options include oral chewables, topical treatments, and tick collars, each with different durations and coverage. The FDA has noted that one class of oral flea and tick products (isoxazolines) can cause neurological side effects in some dogs, so it’s worth discussing your dog’s health history when choosing a product. If you also have cats in the household, never apply a dog tick product to a cat. Cats are extremely sensitive to many of the chemicals used in canine tick preventives, and exposure can be toxic.
Beyond medication, do a full-body tick check on your dog after walks in wooded or grassy areas. Ticks favor warm, hidden spots: inside the ears, between the toes, around the collar area, in the groin, and under the tail. Catching ticks before they’ve been attached long reduces transmission risk significantly, since most tick-borne pathogens take hours of feeding to transfer.