What is Flea Dirt and What Does It Mean for Your Pets?

Summary: Flea dirt is actually flea poop that is made up of dried blood. They look like tiny dots and are a sure sign of fleas on or around your pet. They are commonly found on the tummy and on the tail. Fleas need to be dealt with immediately to prevent health risks and you also need to take preventative measures to try and keep fleas away.

Fleas can be difficult to deal with, especially during the warmer months. However, there are a few signs of fleas that you can look for to stop a potential flea problem dead in its tracks. One of the biggest give away that your poor pet has a case of fleas is the flea dirt that can be found on your dog or cats hair. Lets take a few moments to learn how to properly find it, identify it and work out an effective solution for getting rid of the the fleas and the dirt (and their source) correctly.

Flea Dirt Definition – What is It and How Can You Identify It?

Basically, this type of “dirt” is old blood and feces that is left behind when fleas feed on your pet. This dry blood gives them a “black” appearance on skin or hair. If you touch it, it will feel slightly “grainy”, much like fine sand. Gross I know! They are usually about half a millimeter in length and they leave little marks that are often described as looking like:

  1. Black pepper
  2. Tiny Black Dots
  3. Black Specks
  4. Dog or cat “dandruff” that is dark in appearance
  5. Small tar colored “flakes”
flea dirt

Pictures of Flea Dirt

Regardless of how you see it, if you find something like that on your pet, it definitely deserves some attention. How so? Well flea dirt indicates the presence of fleas. While you may not find any fleas upon first inspection, remember that there may be flea eggs already laid on your pet and secondly, there is a good chance that the flea jumped to safety before you noticed it feeding on your dog or cat. Since fleas pose a health risk to your pet, you need to take action as soon as possible. More on this a little later.

Many people have asked how to tell the difference between dirt from fleas and just normal dirt that may be picked up from the garden or surrounding areas. If you have wondered this before, it’s actually a very good question as incorrect diagnosis can potentially cost you money unnecessarily. Also, if you find this dirt, you may also want to invest in a monthly treatment product to keep your pets flea free but please don’t use a flea collar as these can be very dangerous. Products such as Frontline and Advantage are very good and are worth their price tag. Here are a few ways to check if the “dirt” that you see is actually flea excrement:

  1. Take a paper towel (toilet paper or cotton balls should be fine as well) and put a very small about of water on it. Gently rub your pets fur where you think there may be flea poo and if it appears a reddish brown color (on the paper), its highly likely that its flea poo.
  2. Another way to check is to do use a comb to brush some of the “dirt” off your dog or cats fur and onto a white surface. Once you have collected a bit, also apply a few drops of water and see if the color changes into the same, red stain from the digested blood.

Remember, if you pets enjoy swimming or live outside, remember that the dirt may look like brown-red streaks that are created from flea waste when it comes into contact with moisture (dew, rain, etc.)

Where Can You Find Flea Dirt?

While fleas are not be too picky about the areas of residence, there are a few places where they are known to congregate. Its in your best interest to know these places so that you have a good idea where to start looking. Here are the steps that I personally follow:

  1. The first thing I usually do is check for this dirt on my pets on bedding, unless I actually notice the dirt on my dog or cats fur first of course. Remember to use the “water technique” to check if it turns that red brown color. In fact, it’s a good idea to check this area from time to time to see if there is a bigger flea infestation waiting to happen. Also, if you see your pet scratching continuously, its time to check him or her for fleas and signs of this “dirt”.
  2. Secondly, I would spend some time inspecting my dogs and cats fur, regardless of whether I find the dirt in their sleeping areas. I do this by pushing the fur apart to ensure that I don’t miss anything. Sometimes you may even see the fleas, unless there are very few. Pay extra attention to the belly area and on the back of the tail. Other common places include the paws (especially if its an outdoor pet) and under the arms (or technically, its legs :) )

If You Have Found Flea Dirt (Or Actual Fleas), What Are the Risks?

Despite their size, fleas consume a large amount of blood, especially if there is a large amount of them. While its rather rare and only a result of a terrible flea problem, this can result in anemia. Also, since larvae uses this dried blood to sustain them during their life cycle, its in your best interests to get rid of both the fleas and their dirt as soon as possible. If you have been bitten or your pets are suffering from a large amount of flea bites, its recommended that you seek professional help.

What You Should Do Next

As we have found out so far, learning how to remove flea dirt and fleas requires some work. Its much easier to prevent flea problems then trying to solve them. I presume that you have visited this article because you have a fleas on your pets so lets look at a few things that you can do about it:

  1. Firstly, give your home a good vacuum and wash any clothes that you think may have come into contact with fleas.
  2. Next, use a flea spray with an insect growth regulator chemical to stop the flea life cycle. You can use this on your carpets and after checking with your vet, sometimes you can even use it in kennels, etc. Here is some more information on the best flea treatments for your dogs here is an article that discusses the best way to get rid of fleas on cats, I hope you enjoy it. :)
  3. Lastly, after giving your pet a good wash with flea shampoo (watch out for the claws and death stares if you have a cat) to kill their adult fleas that may be in their fur, perhaps to hide from your wrath.

WARNING: Despite what you may have read about natural treatments for fleas on the internet, please never use tea tree oil (or any essential oils for that matter) as it can pose a serious health risk. Please feel free to contact me for more information.

How Can Flea Dirt Help Me with Proactive Flea Control?

As mentioned, I make a habit of checking various areas for flea as these are signs that things need to be done before the problem gets worse. Here are a few other things that I have made a habit of doing to prevent fleas:

  1. Groom your pets regularly. Not only will this keep your pet looking good but will also help you to spot the dirt from fleas quickly.
  2. Wash your pets blankets once a month. Also look for any flea feces.

You may also want to keep your garden trimmed and cut the grass as often as possible to prevent fleas from coming in from outside. I have had a few readers contact me about their cats having a major flea problem. Most of them have told me that there didn’t see any evidence of flea dirt but have confirmed that there definitely were fleas on their pet. This is actually very common because cats are known to lick themselves constantly and most of the time, this gets rid of the flea poop. For more info, feel free to add me on Google Plus or just leave your comment below this article. Simply put, just spend some time looking carefully at your pets skin and fur and if there are fleas or their dirt, you will be sure to find them, provided to put in the effort.


In conclusion, checking for this special type of “dirt” is a great way to check if your pet has or had fleas. Of course, if you actually see the fleas, you don’t need to spend any time looking for the poo but if not, its an indication that you need to take steps to protect and help your dog or cat before the flea problem becomes a big issue. Remember, if your flea problem is too big to manage yourself or you simply do not have the time, get a quote from an exterminator to assist you with the process. In this guide we have discussed how to identify signs of fleas, where you should look and what you can do about it and I hope that its been informative for you. If you have enjoyed this free guide, please share it with anyone you feel could benefit from this information. Thanks for reading my article about flea dirt and I invite you to ask questions below.

  • Arab Pest Control

    Well done Natasha! Great article. Very informative.

    • http://www.thebugsquad.com/ Natasha Anderson

      Thanks for the comment! That means alot coming from a reputable pest control company :)

  • http://www.thebugsquad.com/ Natasha Anderson

    Hey Alex! As this article outlines, you can do a simple water test to check if its flea dirt. I highly recommend taking a few moments to give it a try before presuming that its from fleas. Yes its very possible but for it to happen, fleas would have had to live on the person for awhile and since most people have a regular habit of bathing/showing, etc. (hopefully :P ), its not a very common finding. If there is a flea presence, its usually quick to identify the actual adult fleas instead of looking for their fecal remains.

  • http://www.thebugsquad.com/ Natasha Anderson

    Hey Esther! Glad to hear that my blog has been recommended, its always a motivation to write more articles lol :) If you are testing for flea dirt, just dap a bit of paper in a little water and rub the area where the dirt can be identified. If it changes to a reddish brown, its highly likely its fleas. You may call an exterminator but also remember that you should make some effort to actually find the adult fleas. For example, if the fleas are only really a problem on your pet, its not going to help to get an exterminator in lol, you would rather take your pet to the vet or purchase a flea removal product. Let me know if you need anymore help :)

  • Anonymous

    Great article! Quick question, are flea dirts contagious? I mean if ever i combed it out from my dog. Is there any possibility that the owner of that pet attracts fleas too? Anyway, a useful post. Thanks for writing something like this. I can use this information to help my friends and family.

    Thank you and good luck in your career.

    Sincerely,
    Wilson

    • http://www.thebugsquad.com/ Natasha Anderson

      Hey Wilson! Flea dirt is not contagious, its simply flea poo and other bits of dried blood and skin. While I would recommend washing your hands after being in contact with it, its not going to find its way over to another dog for example. Its very possible for owners to carry fleas into and around the home but fleas generally prefer animal blood. I have written an article on this, you can find it under the “flea” category at the top on this guide.