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Foxtails are Dangerous to Your Dog's Health

Updated on June 1, 2009
Whitney05 profile image

Whitney has over 10 years of experience in dog training, rescuing and dog healthcare.

What are Foxtails?

You've probably seen plenty of foxtails out in nature, mostly growing in vacant logs, along roadsides, or in meadows, but you may not have know what they were called. Foxtails are simply a foxtail-like cluster of seeds on the stalks of certain types of grasses. The clusters have sharp points that are designed by nature to penetrate the soil once the cluster comes loose from the plant, which enables the seed to take hold in the ground and start to grow roots.

To ensure that the seeds will take root to the ground, the cluster contains barbs that make it hard for the cluster to come loose from the dirt once it starts to penetrate. The outside of the cluster also harbors a bacteria that contains and enzyme that is designed to break down cellular matter to help the seed bury into the ground past other plants.

You can find foxtails all around the country, but they are most common in the Western United States. The largest occurance of foxtails is in California.

Foxtails cause the most problems for dogs during the late spring and summer months, mostly in drier climates, as this is when they come loose from the plant and start looking for a place to bury.

Foxtails are highly problematic during warmer months when the weather is drier, so when the grass isn't green, be VERY leery of letting your do play around foxtail.
Foxtails are highly problematic during warmer months when the weather is drier, so when the grass isn't green, be VERY leery of letting your do play around foxtail.

Why are Foxtails Dangerous?

Although, foxtails are great for reseeding plants in nature's sense, but for dogs, it creates a whole other issue. When a dog comes into contact with a loose foxtail cluster, the cluster can attach to the dog's fur and begin to move inward as the dog moves. The barbs on the cluster will keep the foxtail from falling off or backing out of the fur, and the enzymes in the bacteria break down the dog's hair and tissues. The foxtail will work its way into the dog's body, just as it does the ground.

Dogs that come into contact with foxtails have a pretty good chance of having at least one of these seed clusters try to work its way into the dog's body, which can result in a very sick dog.The degree of illness will depend on the area where he foxtail tries to enter and how much damage was caused in the process.

Foxtails can enter the dog's nasal passage, eyes, ears, and mouth, and can work their way into the dog's lungs, along the backbone, and into many other locations throughout the dog's body.

A veterinarian will need to locate the foxtail and remove it. If the foxtail has embedded past the reach of tweezers or forceps, the dog will need to undergo surgery to remove the foxtail.

Keep Your Dog Away from Foxtails

Because there is a potentially for a very dangerous situation when a foxtail comes in contact with a dog, it is imperative the dog owners who live in areas where foxtails are prevalent use preventative measures to ensure that pets are kept free and clear of these foxtail clusters.

  • Avoid walking your dog in fields or on roadsides where foxtails grow. You shouldn't have a problem walking your dog where the grass is green, as foxtails grow in dry areas.
  • When camping or hiking, keep an eye out for foxtails, and try to keep the dog away from those areas as best as you can.
  • Remove any weeds in your yard.
  • Discourage your dog from chewing on grass.
  • Examine your dog DAILY, especially after each trip outside.

If your dog does come into contact with a foxtail-infested area, you want to make sure that you carefully look him over for any foxtail seed clusters that may be lodged in his coat. Dogs with thicker coats have a greater risk of you missing a foxtail, so you want to look very closely, especially if your dog has an undercoat where the seeds can hide. Some owners will trim the coat of dogs who have thicker fur, so that foxtails are easier to spot.

Make sure to give your dog a thorough grooming after the dog has come into contact with foxtail-infested area. Make sure that you comb the entire coat with a fine-tooth comb, such as a flea comb. Examine between toes, under the armpits, stomach, and inside the ears.

Bloody foxtails removed from a dog
Bloody foxtails removed from a dog

Signs that Your Dog Has a Foxtail

In the nose: Sudden sneezing, pawing at his nose, and possible bleeding from the nostril. If a foxtail is able to work its way into the sinus cavity, the dog's symptoms will eventually disappear, which may lead you to believe that whatever was bothering him has gone away, but if the foxtail is in the sinus cavity, then the situation can become very dangerous, possibly leading to severe infection.

In an ear: Pawing at the ear, head tilt, shaking the head, crying, and possibly stiff gait when walking. You may not be able to see the foxtail, once it embeds deep within the ear.

In an eye: Squinting, tearing, and mucous discharge. The dog may paw at the eye, but you may not be able to see the foxtail if if has already lodged beneath the eyelid.

In the mouth: Gagging, retch, cough, eat grass, stretch his neck, and swallow repeatedly.

If you think that your dog has encountered a foxtail, you'll want to seek assistance of a vet immediately if you can't remove the foxtail yourself. It's very important that your act as quickly as possible because embedded foxtails can cause serious and sometimes fatal infections.

Disclaimer: Please be aware that the advice in this article should in no way replace that of a licensed veterinarian. The methods outlined above may or may not work for your pet. If you have any concerns, you should consult a veterinarian.


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    • profile image


      6 years ago

      I thought this was an old wives tale - but its not. I knew what it looks like and heard that this wheat looking grass could kill dogs but I didn't know why or how. I have two chihuahuas and one stepped on one while we were in the park playing with a ball. I thought she broke her toe..the vet gave her an antibiotic shot and might have to do surgery on her in a few days. WTH...this is not good.

    • profile image


      8 years ago

      well today i just brought ten fox tails and just read this information and i have a dog she is a chocolate lab but the foxtails i brought r broke on the bottom cause u buy them in dividually and they r dyed different collors wat should i do will thay still harm her

    • michellehouser profile image


      8 years ago from Kansas

      Wow, I had no idea that foxtails were dangerous for my dogs. Thanks for sharing your information.

    • Whitney05 profile imageAUTHOR


      9 years ago from Georgia

      I'm sorry to hear this. I wish your dog luck.

    • profile image


      9 years ago

      Thanks for posting this information unfortunately I found it too late and my dog is currently at the vet sedated having one probed out of her rear end. :(

    • profile image

      Erick Smart 

      9 years ago

      I had no idea about Foxtails. I do realize that there are many plants out there which will harm your dog but I do not know them all.

    • Whitney05 profile imageAUTHOR


      9 years ago from Georgia

      ethel, it is a potential danger that's for sure.

      droj, yep me too... Although, I'd still worry on the east. You never know. Ha. If you do happen to see them. be leery

      Dink, that's good to hear that you have less chance of your dogs getting into a batch of foxtails.

    • Dink96 profile image


      9 years ago from Phoenix, AZ

      We had a much larger yard at our previous house and had a devil of a time with keeping foxtails under control! Thank goodness we now have short hair dogs and NO foxtails in our yard. An important hub for dog owners and a vexing problem in the southwest. Thanks for passing this info along.

    • droj profile image


      9 years ago from CNY

      This is messed ... up! I'll keep my bowsers over here on the east coast, thanks. :)

    • kblover profile image

      Brian McDowell 

      9 years ago from USA

      Will have to watch out for these to be sure. I don't think I've seen many of them, but it never hurts to be aware. Thanks.

    • ethel smith profile image

      Ethel Smith 

      9 years ago from Kingston-Upon-Hull

      I do worry about these when I let my dogs have a good romp off their leads. When one of my dogs appeared to have one though it was a benign tumour starting out. Good advice on this hub and worth noting

    • Whitney05 profile imageAUTHOR


      9 years ago from Georgia

      Thanks :-)

      Gypsy, it is important to know, especially if you live in an area with foxtails. I just hope I can help someone out with the info.

    • Gypsy Willow profile image

      Gypsy Willow 

      9 years ago from Lake Tahoe Nevada USA , Wales UK and Taupo New Zealand

      My next door neighbor's dog has just suffered such an attack and is now wearing a large plastic ruff to stop him gnawing his flank. Thanks for bringing this to every one's attention. Important hub.

    • GiftedGrandma profile image


      9 years ago from USA

      I have no dogs, but very interesting information

    • profile image


      9 years ago

      Interesting. Thanks for this hub. I have three dogs, two which are always outside. This is very good to know


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