Raccoons are one of the most ubiquitous urban wildlife species in North America. With their distinctive black mask-like markings around the eyes, striped tails, and human-like handiness, raccoons have an almost whimsical appeal. However, this charismatic demeanor belies a more complicated truth about their potential risks.

While raccoons are not typically aggressive animals, they can become dangerous in certain situations – especially if they are cornered, feel threatened, or are protecting their young. Understanding the potential dangers raccoons pose, and taking appropriate precautions, is essential for safely co-existing with these adaptive mammals.

Raccoon Aggression and Attacks

Like most wildlife, raccoons will generally avoid direct conflict with humans if given an avenue for retreat. However, raccoons are formidable mammals, possessing sharp teeth and claws capable of inflicting serious injuries if they choose to attack.

Raccoon dog

Female raccoons are fiercely protective of their young and may become extremely aggressive if they perceive a threat to their litters. Males are also territorial during the breeding season in late spring and can respond violently to perceived intruders near their denning sites.

While unprovoked attacks on humans are relatively rare, they do occur – particularly if raccoons become accustomed to being fed by people and then aggressively demand more food. Attempting to touch, handle, or corner a raccoon often provokes an aggressive response as well.

Raccoon Diseases and Parasites

One of the primary dangers raccoons pose is their ability to transmit diseases and parasites. Raccoons are vectors for a number of serious pathogens, including:

Raccoon dog

Raccoon Rabies Variant

As their name implies, raccoons are among the primary carriers of the raccoon rabies virus variant in the United States. Raccoon-strain rabies is extremely prevalent along the east coast and has been expanding its range. Exposure typically occurs through bites or scratches from infected animals.

Baylisascaris Roundworm

Baylisascaris procyonis is a raccoon intestinal roundworm that can cause devastating brain, eye, and spinal cord damage in humans – especially children – if the eggs are ingested from raccoon feces. This parasite causes neural larva migrans, which can be fatal if untreated.


Raccoon dog

Raccoons can carry and shed Leptospira bacteria in their urine, which can contaminate water sources, soil, and vegetation. This bacterial disease can then be transmitted to humans through open wounds or ingestion, potentially causing severe flu-like symptoms and organ damage.


Raccoons are reservoirs for the Giardia intestinal parasite, which causes severe diarrhea and gastrointestinal distress in humans if contaminated water sources are consumed. Giardia cysts from raccoon feces contaminate both municipal and wilderness water supplies.

In addition to spreading pathogens, raccoons also commonly carry fleas, ticks, lice, mites, and roundworms which pose tangential disease risks for humans and pets.

Raccoon Attacks on Pets

Raccoon dog

Pets, particularly smaller dogs and cats, are extremely vulnerable to raccoon attacks and predation. Raccoons frequently attack pets in yards, either feeling territorial or attempting to procure an easy food source.

Raccoons are skilled predators and can easily overpower, kill, and eat small animals like cats. They also sometimes kill larger dogs during confrontations. Pets allowed to run loose at night are most at risk.

Raccoons frequently carry canine distemper virus, which is deadly to dogs that have not been vaccinated. Their bites and scratches transmit infectious diseases like rabies as well as causing traumatic injuries to pets.

How to Reduce the Risk of Raccoon Encounters

Raccoon dog

To minimize the dangers of interacting with raccoons:

  • Never feed raccoons! This causes them to lose their fear of humans and become aggressive.
  • Don’t leave pet food outside, which can attract raccoons.
  • Securely cover garbage cans and compost bins to discourage raccoons from foraging.
  • Seal off entry points to attics, chimneys, and spaces under homes that raccoons use for denning.
  • Don’t allow pets to roam outside at night unattended where they could encounter raccoons.
  • Vaccinate pets against rabies and distemper to protect them if attacked.
  • Never touch or attempt to handle raccoons, including babies.
  • Use repellents and exclusion techniques to deter raccoons from living in close proximity.
  • If raccoons are creating problems, consult professional wildlife control services for safe removal.

Coexisting Safely With Urban Raccoons

Raccoon dog

As intelligent, adaptable creatures who thrive in human-altered environments, raccoons will continue being a common part of urban and suburban ecosystems. While rarely aggressive toward humans under normal circumstances, their potential ability to transmit dangerous diseases and seriously injure pets underscores the importance of exercising prudence.

Preventing raccoons from becoming acclimated to humans, keeping pets under control, and deterring raccoons from denning near homes allows these fascinating mammals to coexist safely at a healthy distance. With reasonable precautions, the potential dangers raccoons pose can be minimized while still appreciating their engaging presence as part of our urban wildlife communities.

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