You happen to notice your dog scratching and biting themselves and you think at first that it’s probably nothing. When your dog continually bites and scratches, you start to get worried that maybe something else is going on. The last thing that you would probably think is that your dog might have lice! Can dogs even get lice? Yes, they can and dog lice can happen to any one of our pups.
This post will look at what dog lice is, types of canine lice, symptoms your pup may have if they have and infestation, how it is diagnosed, treatment options available, and some preventive strategies you can use to prevent your pup from getting lice.
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Disclaimer: This post is meant to be informative and should not be taken as medical advice. Talk to your veterinarian regarding any health concerns you may have for your dog.
What Is Dog Lice?
Dog lice are external parasites that specifically target dogs, potentially causing discomfort and health issues.
Infestations are identified by the presence of either live lice or their eggs, known as nits, in your dog’s fur.
The presence of these pests often leads to a skin condition termed canine pediculosis.
These parasites tend to prefer long haired breeds or those neglected or in poor health. Very young and very old dogs are also more susceptible to infection.
Canine lice prefer the head, neck, and tail of dogs, as well as, around wounds and openings.
A regular inspection of your dog’s coat, especially if they are in contact with other dogs, is a good routine to catch lice infestations early.
What Are The Types Of Dog Lice?
There are two main types of canine lice, chewing lice and sucking lice.
Chewing Lice (Trichodectes canis and Heterodoxes spinager)
These lice feed on your dog’s skin debris, surface secretions, and even blood. They have large heads that assist in chewing and are visible to the naked eye as active insects among your dog’s fur.
Sucking Lice (Linognathus setosus)
Smaller than chewing lice, these lice survive by ingesting your dog’s blood. Their presence can lead to symptoms such as skin irritation, hair loss, and even anemia in severe cases, especially in puppies.
What Is The Lifecycle Of Dog Lice?
The life cycle of canine lice is relatively simple and consists of three stages:
Nits (Lice Eggs)
These are firmly attached to the host’s hair shafts.
Nymphs
Once hatched, lice enter the nymph stage, resembling smaller versions of adult lice.
Adults
As adult lice mature and begin to reproduce, they continue the infestation cycle.
The lifecycle completes in about 4 weeks, and treatments should target all stages to effectively eliminate them.
How Can I Tell If My Dog Has Lice?
Recognizing symptoms early can help your pup get diagnosed and treated quickly. Symptoms of lice infestation may include:
Itchiness
You may notice your dog scratching, rubbing, or biting at their skin more often than usual.
Skin Irritation
Look for signs of redness or irritation on your dog’s skin.
Poor Coat Condition
A rough, dry coat or matted fur can be an indication of lice being present.
Hair Loss
This often occurs around the neck, ears, upper back, groin, and rectum.
Anemia
In severe cases, particularly with blood-sucking lice, anemia can occur. You may notice pale gums and lethargy in your dog.
How Is Dog Lice Diagnosed?
To confirm an infestation, your veterinarian will do a series of tests, including:
Visual Inspection
Your veterinarian will part your dog’s hair in various places and look for adult lice or nits attached to the hair shafts.
Microscopic Examination
A sample may then be taken to examine under a microscope. This allows for the differentiation between lice and other skin parasites.
By recognizing the early signs and obtaining a professional diagnosis, you can address the lice infestation effectively, and decrease your dog’s discomfort.
Can Dog Lice Transfer To Humans?
Lice are species-specific parasites, which means that the lice that infest dogs are different from those that infest humans.
Human head lice (Pediculus humanis capitis) thrive exclusively on human blood and do not infest dogs. Similarly, canine lice are not interested in living on human hosts.
Canine lice cannot live on human blood. Even if a dog louse happens to crawl onto a human, it cannot survive or reproduce on a human host.
To avoid confusion and ensure proper treatment, if you suspect your dog has lice, consult with your veterinarian. They can confirm the presence and species of lice and recommend an appropriate course of action.
What Are The Treatment Options Available For Dog Lice?
Treating lice requires an approach that focuses on both eradication and ongoing prevention.
After having your dog examined by your veterinarian and positively diagnosed, there are several treatment options your veterinarian might recommend, including topical insecticide and oral medication.
Topical Insecticides
These are products containing selamectin, imidacloprid, or fipronil. They are usually applied directly to your dog’s skin and are formulated to kill lice and their eggs.
Oral Medications
Some oral treatments meant for fleas can also be effective against lice. Always use these under the direction of your veterinarian.
Flea and tick prevention that you are already giving your dog can provide your dog with added protection against lice.
Hair Cut
In severe cases, you pup may need to have their hair cut short.
Note: You should wash your dog’s bedding and sanitize grooming tools in hot water to eliminate any remaining lice or nits to prevent re-infestation.
What Are Prevention And Control Measures To Help Keep My Dog From Getting Lice?
To avoid the spread of lice and protect your dog from future outbreaks, you will want to regularly groom your dog, keep the environment clean, and avoid contact with infected dogs.
Regular Grooming
Frequent brushing helps detect lice early before they become a significant problem.
Environmental Control
Keep your dog’s living areas clean and regularly vacuum to remove any stray lice or nits.
Avoid Contact
Prevent your dog from interacting with infested dogs. Lice can easily spread through close contact.
Consider using preventive treatments year-round, especially if your dog frequently socializes with other dogs at doggy day care or your local dog run or park.
Can Dog Lice Infest My House?
Lice are dependent on their dog hosts for survival. These pests need the warmth and food supply provided by a dog’s body. In the absence of their preferred host, they do not survive long and are unlikely to establish a population in your home.
Dog lice is a condition that we never think will happen to our pups. If you use a flea and tick preventative for your dog, their chances of getting lice greatly diminishes.
The condition is more likely to be found in strays and shelter animals, but it is worth it to keep a close eye on your pup if they frequently visit parks, dog runs, and doggy day care.
For more information on dog lice, check out the Merck Veterinary Manual.
Please check out our other posts on Health, Indoor, Outdoor, and Travel accessories for your dog, as well as Reviews of various products and travel destinations.