Can Bed Bugs Bite Pets?

Bed bugs strongly prefer human blood, but they will feed on pets when humans are unavailable. According to the University of Kentucky Entomology department, bed bugs are specialized feeders that prefer human hosts but will opportunistically feed on other warm-blooded animals or when the infestation is severe. If you have dogs, cats, or other animals, here is what you need to know.

In my experience treating bed bug infestations across the Southeast, I have encountered pet-related cases fairly regularly. While bed bugs prefer human hosts, I have seen dogs and cats with bite marks in severe infestations. I always tell pet owners to inspect their pet's bedding and the areas around pet crates during a bed bug inspection -- these spots are often overlooked.

Do Bed Bugs Bite Dogs and Cats?

Yes, bed bugs can and do bite dogs and cats. However, they are not the preferred host. Bed bugs are attracted to the carbon dioxide and warmth that humans emit, and human skin is more accessible to them than the fur-covered skin of most pets.

Pets are more likely to be bitten when:

• The infestation is large and competition for human hosts is high.
• The pet sleeps in or near the bed.
• The pet is the only warm-blooded host available (for example, if you travel and leave your pet at home).

How to Tell If Your Pet Has Been Bitten

Bed bug bites on pets are difficult to spot because of fur coverage. Signs to watch for include:

• Excessive scratching or licking in localized areas.
• Small red welts or bumps on areas with less fur, such as the belly, inner legs, or ears.
• Restless behavior or reluctance to sleep in their usual spot.

If you notice these signs along with other evidence of bed bugs in your home (fecal spots, shed skins, bites on yourself), bed bugs may be the cause.

Bed Bugs vs Fleas on Pets

It is important to distinguish between bed bugs and fleas, as the treatment approach differs significantly.

• Fleas live on the pet, spend most of their time in the fur, and reproduce rapidly. You will find flea dirt (dark specks) in the fur and may see fleas jumping.
• Bed bugs do not live on pets. They feed and retreat to hiding spots in the environment. You will not typically find bed bugs in your pet's fur.

For a detailed comparison, see Bed Bug Bites vs Flea Bites.

Can Pets Carry Bed Bugs?

Pets do not carry bed bugs the way they carry fleas or ticks. Bed bugs are not adapted to navigate through fur and do not cling to animal hosts. However, bed bugs can hide in pet bedding, crates, and carriers. If your pet's bed is near an infested area, inspect and treat it as part of your overall treatment plan.

Protecting Your Pets During Treatment

• Wash pet bedding in hot water and dry on high heat.
• Inspect pet crates and carriers and vacuum them thoroughly.
• Move pet sleeping areas away from infested zones during treatment.
• The EPA advises that if using chemical treatments, you should ensure all products are pet-safe and follow label instructions for pet exposure. Keep pets out of treated areas until products have dried.
• Consider heat treatment as a chemical-free alternative.

Do Bed Bugs Live on Other Animals?

Research published in the Journal of Medical Entomology confirms that bed bugs primarily target humans but have been documented feeding on birds, bats, rodents, and other mammals. A related species, the bat bug (Cimex adjunctus), specializes in feeding on bats and is sometimes found in homes with bat infestations.

See our Complete Guide to Bed Bugs for comprehensive information on identification, prevention, and treatment.

Main Causes

Bed bugs reach homes with pets through exactly the same introduction routes as any other household: travel, secondhand furniture, visitors with infested belongings, and spread between units in multi-family housing. Pets are not a cause or carrier in the way fleas and ticks spread via animal hosts. Bed bugs don't live on pets' fur or bodies -- they feed and retreat to harborage in the environment. What pets do is create additional harborage opportunities: pet beds, crates, and carriers in or near sleeping areas provide the warm, dark hiding spots that bed bugs favor. A bed bug infestation in a home with pets is usually traced to the same human-associated introduction routes, but the pet sleeping area becomes an additional part of the problem once established. According to the University of Kentucky Entomology department, bed bugs are generalist feeders that exploit whatever warm-blooded host is most accessible.

How to Identify

Identifying a bed bug infestation when pets are present requires inspecting all the usual sites plus the pet-specific sleeping areas. Check mattress seams, box spring edges, and headboard brackets first, as these remain the most common harborage sites. Then inspect pet beds, especially along seam lines and any foam interior exposed by wear or chewing. Examine crates and carriers: the floor seams, corner joints, and any fabric padding or tray liners. Look for the standard bed bug signs: dark brown fecal spots that smear slightly when wet, shed translucent exoskeletons, and small cream-colored eggs in seam corners. In severe infestations, check baseboards near where pets sleep regularly. The difference between bed bug and flea evidence: fleas leave dark flea dirt distributed through fur and on pet bedding surfaces, while bed bugs leave fecal spots concentrated along seam lines and in tight harborage crevices. See signs of bed bugs for a full guide.

Risk and Severity

Bed bugs are not considered a significant direct health threat to dogs and cats. They're far less likely to bite pets than humans, and pets rarely develop the same visible bite reactions. The practical risk for pet owners is that pet sleeping areas become harborage sites that complicate treatment if not addressed as part of the overall infestation response. Ignoring pet beds and crates during professional treatment leaves an untreated reservoir that reseeds the population after the main treatment. In severe infestations where human hosts are less accessible, pets bear more of the feeding burden, and bite evidence may become visible on areas with thin fur. The EPA advises that all pet bedding should be included in the high-heat laundering step of any bed bug treatment protocol. Prompt, thorough treatment that includes pet sleeping areas gives the best outcome for all household members.

Prevention

Preventing bed bugs in homes with pets requires the same human-focused strategies plus attention to pet-specific harborage. Launder pet bedding regularly on high heat. Wash removable crate pad covers and carriers on the same high-heat cycle. Inspect secondhand pet furniture -- crates, beds, and carriers -- before bringing them home. If you travel with your pet and stay in hotels, keep the carrier off upholstered surfaces and inspect it after checkout, just as you would inspect your own luggage. After a veterinary visit or grooming appointment where your pet may have been in contact with fabric surfaces, inspect the carrier upon returning home. In multi-unit housing, seal gaps around baseboards and utility penetrations to reduce the chance of bed bugs migrating from adjacent units into pet sleeping areas. See how to prevent bed bugs for the full prevention framework that applies to any household.

Solutions and Actions

Eliminate bed bugs through an integrated protocol rather than any single method. Encase the mattress and box spring in certified bed-bug-proof covers; this traps any bugs inside the bed and prevents new ones from establishing in the most attractive harborage. Install interceptor traps under every bed leg to monitor activity and intercept bugs traveling to and from the bed. Wash all bedding and recently worn clothing in hot water and dry on high heat for at least thirty minutes. Vacuum mattress seams, baseboards, and cracks daily, disposing of bag contents outside in a sealed container. Apply targeted residual sprays to cracks and crevices, then plan to repeat the whole protocol every seven to ten days for three to four cycles. Heavy infestations or repeated treatment failures warrant a licensed professional with heat or fumigation capability.

Frequently Asked Questions

Do bed bugs prefer humans or dogs?

Bed bugs strongly prefer human hosts because they are attracted to the specific carbon dioxide, body heat, and chemical cues that humans produce. Dogs and cats are secondary hosts that bed bugs may feed on when human hosts are not readily accessible.

Can my dog carry bed bugs into the house?

Unlike fleas and ticks, bed bugs do not live on pets. However, a dog could theoretically transport a bed bug that crawled onto them, though this is much less common than transmission via luggage, clothing, or furniture.

How do I treat bed bug bites on my dog?

Wash the affected area with mild soap and water. Consult your veterinarian if bites appear infected or if your dog is excessively scratching. Most bed bug bites on pets heal without treatment. Focus on eliminating the infestation in your home to prevent further bites.

Should I check my pet's bed for bed bugs?

Yes. If you have a bed bug infestation, inspect your pet's bedding, crate, and favorite resting areas. Bed bugs can hide in pet bed seams and the areas around pet sleeping spots, especially if the pet sleeps in or near your bedroom.