Rabbits can be infected with the bacterium that causes Lyme disease, but they don’t appear to get sick from it. No clinical signs of Lyme disease have ever been reported in rabbits. Wild cottontail rabbits in areas where Lyme disease is common show high rates of exposure, with studies finding antibodies in 56% to 90% of rabbits tested, yet none develop the joint pain, fever, or organ damage seen in dogs or humans. For pet rabbit owners, the real concern isn’t Lyme disease itself but the ticks that carry it, which can cause other serious problems.
What Happens When a Rabbit Is Infected
When researchers deliberately exposed rabbits to the Lyme bacterium in laboratory settings, the rabbits did mount an immune response, producing antibodies against the infection. In one experiment, a rabbit developed a circular skin rash at the injection site just two days after being inoculated, and another developed one 17 days after infected ticks fed on it. Spirochetes (the corkscrew-shaped bacteria responsible for Lyme) were also recovered from the blood of two rabbits about two weeks after exposure.
Despite this, the infection doesn’t progress the way it does in humans or dogs. Rabbits appear to fight off the bacterium without developing lasting symptoms like lameness, kidney problems, or neurological issues. They’re also not considered infectious to other animals or people, meaning the bacteria can’t spread directly from a rabbit to another host. In the wild, rabbits function as part of the tick lifecycle rather than as a meaningful source of the disease.
How Rabbits Fit Into the Tick Lifecycle
Rabbits and hares are important hosts for several tick species worldwide. In North America, a tick called Ixodes dentatus feeds preferentially on cottontail rabbits and is sometimes referred to as the “rabbit tick.” This species rarely bites humans. Rabbits primarily support immature ticks (larvae and nymphs), giving these young ticks a blood meal that allows them to mature into the next life stage.
The tick species most responsible for transmitting Lyme disease to humans and dogs in North America, the blacklegged tick (sometimes called the deer tick), can also attach to rabbits. But because rabbits don’t sustain the infection well enough to reliably pass it back to feeding ticks, they play a relatively minor role in spreading the disease compared to mice and other small rodents, which are far more efficient at infecting new ticks.
Why Ticks Still Matter for Pet Rabbits
Even though Lyme disease itself isn’t a clinical concern for rabbits, tick bites can still cause problems. Heavy tick infestations lead to blood loss, skin irritation, and stress. Ticks can also transmit other infections. A rabbit with multiple ticks feeding on it is an uncomfortable rabbit, and any tick found on a pet rabbit should be removed promptly with fine-tipped tweezers, pulling steadily without twisting.
If your rabbit spends time outdoors in a run or enclosure, placement matters. Ticks thrive in wooded, bushy areas with tall grass and thick leaf litter. Keeping outdoor enclosures on short, mowed grass and away from tree lines and brush significantly reduces the chance of tick encounters. Regularly checking your rabbit’s skin, especially around the ears, neck, and base of the tail, helps catch ticks before they’ve been attached long.
Tick Prevention Products and Rabbit Safety
One of the most important things rabbit owners need to know is that many common tick prevention products used for dogs and cats are dangerous for rabbits. Fipronil, the active ingredient in several popular spot-on treatments marketed for cats and dogs, is toxic to rabbits. It can cause seizures, tremors, loss of appetite, extreme lethargy, and death, particularly in young, underweight, or debilitated rabbits. Symptoms can appear within four to six hours of application.
There is no widely approved over-the-counter tick preventive specifically labeled for rabbits. If you live in an area with heavy tick activity and your rabbit goes outdoors, talk to a veterinarian experienced with rabbits about safe options. Some practitioners use specific treatments at carefully calculated doses, but this should never be guessed at with products designed for other species. The safest approach for most pet rabbit owners is environmental management: keeping the outdoor space trimmed and tidy, checking for ticks daily, and removing any that are found.
Indoor Rabbits and Risk Level
If your rabbit lives entirely indoors, the risk of tick exposure is extremely low. Ticks don’t infest homes the way fleas can. They’re picked up from vegetation, so a rabbit that never touches grass or leaf litter is unlikely to encounter one. The occasional tick could hitch a ride indoors on a dog, cat, or human clothing, but this is uncommon enough that indoor rabbit owners generally don’t need to worry about tick prevention as a routine measure.
For rabbits with supervised outdoor time in tick-prone regions, particularly the northeastern United States, the upper Midwest, and parts of the Pacific coast, regular body checks after each outdoor session are the simplest and most effective precaution. Focus on areas where fur is thinner or skin folds create hiding spots. If you find a tick, remove it cleanly and monitor the area for a few days for signs of irritation or swelling.