How to Tell If Your Dog Has a Tick

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Ticks are tiny bugs that like to hide on your dog and feed off its blood. Here's how to tell if your dog has a tick.

Just about every dog owner has heard of ticks and knows these parasites can carry diseases that are dangerous to both dogs and humans. But ticks are good at hiding and can be tough to find, so how do you know if your dog has one?

Regularly search your dog for ticks if they spend time outside in wooded or grassy areas. Ticks are active throughout the year, but are generally more prevalent in the spring and fall.

What Do Ticks Look Like on Dogs?

A tick is tiny — it feels like a hard bump on your dog's skin and is typically a dark brown or black. Depending on the life stage you see, some ticks will have six legs (larvae) or eight legs (nymphs and adults). If they have been on your dog for a while, they might be bloated from feeding on your dog's blood and appear to be a light brown or gray color. In cases like these, a tick can easily be confused with a small skin lump or cyst.

Ticks are typically found near a dog's neck, head, ears, and in the creases under their legs. Most people only notice ticks after the creatures have attached themselves to a dog to blood feed. But it's important to know that when ticks get on a dog, they will often move around the body searching for the best place to bite and blood feed.

Signs Your Dog Has a Tick

If you start seeing the following symptoms, your dog may have a tick somewhere on their body:

  • Licking and chewing: Your dog may lick and chew at a particular area on its body where the tick is located.
  • Red, inflamed skin: Sometimes, the skin around the embedded tick can become swollen, inflamed, and red.
  • Anemia: If a dog, typically a smaller breed dog or puppy, is infested with lots of ticks, the ticks can drink so much blood that the dog becomes anemic. Dogs with ticks may have pale gums and be lethargic.
  • Scabs: There may be a tick embedded in your dog's skin if you find random scabs on your pet's body.
  • Head shaking: Ticks sometimes crawl into a dog's ear canal or latch onto the ear's outer flap, and head shaking may be one indication.
  • Tick paralysis: In rare situations, some ticks may inject a toxin into your dog's system while feeding, causing weakness and paralysis of the legs and body. While it's alarming, removing the tick will return function to your dog's body.
  • Tick disease: If a dog comes down with a tick disease, by the time the owner notices the symptoms the tick will be long gone. That's because tick disease symptoms typically don't present themselves until months after the tick bite. In such cases, you might notice fever, tiredness, shifting lameness, pale gums, and difficulty breathing.
  • Lyme disease: This well-known tick-borne disease can cause depression, loss of appetite, fever, swollen lymph nodes, and renal failure.

Try to avoid dealing with ticks by keeping your dog on preventives. If you do find the parasite on your dog, you'll want to carefully remove it. Read more about how to remove a tick from your dog here.

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Credelio® (lotilaner)  

Credelio kills adult fleas and is indicated for the treatment and prevention of flea infestations and treatment and control of tick infestations (lone star tick, American dog tick, black-legged tick, and brown dog tick) for one month in dogs and puppies 8 weeks and older and 4.4 pounds or greater. 

Important Safety Information: 
Lotilaner is a member of the isoxazoline class of drugs. This class has been associated with neurologic adverse reactions including tremors, incoordination, and seizures. Seizures have been reported in dogs receiving this class of drugs, even in dogs without a history of seizures. Use with caution in dogs with a history of seizures or neurologic disorders. The safe use of Credelio in breeding, pregnant or lactating dogs has not been evaluated. The most frequently reported adverse reactions are weight loss, elevated blood urea nitrogen, increased urination, and diarrhea. For complete safety information, please see Credelio product label or ask your veterinarian.