How Nasty Are Opossums? Odor, Droppings, and Health Risks

Disclaimer

This blog provides general information and is not a substitute for veterinary advice. We are not responsible for any harm resulting from its use. Always consult a vet before making decisions about your pets care.

If you’ve ever spotted an opossum and felt a little creeped out, you’re definitely not alone. A lot of folks see these critters as dirty, aggressive, or just plain gross.

But honestly, that’s not really fair. Opossums usually keep to themselves and actually help control pests like ticks and rats.

A close-up of an opossum sitting on a tree branch surrounded by green leaves.

Their odd looks and that whole “playing dead” act can really throw people off. Still, opossums tend to be shy and steer clear of humans.

Most of the time, they don’t spread many diseases or cause big problems around the house.

Understanding why opossums do what they do can shift your perspective. Maybe you’ll even see why they’ve earned such a bad reputation—and what they’re actually doing for your yard and the environment.

Why Opossums Are Considered Nasty

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People often judge opossums harshly because of their habits and, well, their smell. Their scent, waste, and eating habits can cause headaches for homeowners, so it’s no wonder some folks find them pretty unpleasant.

Opossums and Their Strong Odor

If opossums have been around your place, you might catch a whiff of something strong. Their body oils and scent glands produce a musky, oily odor, especially when they’re scared or stressed.

That smell isn’t your everyday stink—it’s a lingering, stubborn scent that clings to sheds, decks, or wherever they hang out. It can be a pain to get rid of and makes people think opossums are filthy.

Opossum Urine and Persistent Smells

Opossum urine is another story. It’s sharp and it sticks around for a long time.

They often pick the same spots to do their business, so the odor builds up fast. Your garden, patio, or crawl space can start to smell pretty unpleasant.

Cleaning it up isn’t easy, especially if it’s soaked into wood or concrete. Even after hosing things down, the smell can come back unless you use special cleaners.

Their urine can also attract other animals, so you might end up with more wildlife than you bargained for.

The Impact of Opossum Droppings

Their droppings? Yeah, those can be nasty too. Opossum poop stinks and sometimes carries parasites or bacteria that aren’t great for your health.

Since these critters wander at night and eat all kinds of stuff, you might find their droppings in odd places—gardens, patios, under the deck.

If you spot opossum droppings, use gloves and disinfectant to clean up. Better safe than sorry, right?

Opossums Feeding Habits and Trash

Opossums love to dig through trash cans and compost piles. They’ll eat almost anything—garbage, old food, even dead animals.

This habit means they might tip over trash cans or leave scraps all over your yard. Not exactly tidy houseguests.

To keep them out, make sure your trash cans have tight lids and keep food scraps away from outdoor spaces.

For more info on how opossums act around people, check out this article on opossums feeding habits and pest control.

Health Risks and Disease Concerns From Opossums

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Opossums can carry some diseases that might affect you, your pets, or your property. They spread bacteria, parasites, and viruses through their droppings, bites, or fleas.

If you know how these risks work, you can keep your home and family safer.

Leptospirosis and Other Zoonotic Diseases

Leptospirosis is a bacterial infection found in the urine of infected animals—including opossums. If you touch water or dirt that’s been contaminated by their urine, you could catch it.

This disease can cause flu-like symptoms and, if ignored, more serious health issues.

Opossums might also carry germs linked to diseases like Trypanosoma cruzi, which causes Chagas disease in some places. It’s rare, but direct contact with opossums or their waste does raise your risk.

Keep pets and people away from opossums and their droppings to be on the safe side.

Salmonella in Opossum Feces

Opossum droppings can contain Salmonella bacteria. That can lead to stomach problems and diarrhea in people and pets.

You might get exposed by touching contaminated soil, garden plants, or surfaces where opossums have walked.

This bacteria spreads easily if you don’t wash your hands after being outside. Wearing gloves and cleaning up after yard work helps lower your risk.

Don’t let pets play or sniff around places where you’ve seen opossum poop.

Parasites and Infection Transmission

Opossums often carry parasites like fleas, ticks, and worms. Fleas and ticks from opossums can bite you or your pets and sometimes spread diseases like Lyme or Rocky Mountain spotted fever.

They also pass along internal parasites like hookworms through their droppings. These can contaminate soil or water and cause infections if you don’t keep things clean.

Regular pest control and keeping your yard tidy go a long way in stopping parasites from spreading.

Opossums Compared to Other Rodents

If you compare opossums to rodents like rats and mice, you’ll notice opossums usually don’t bite or get aggressive. They act more like scavengers and don’t invade your food storage as often.

But let’s be real—both opossums and rodents can carry some nasty stuff, like leptospirosis, salmonella, and parasites. That’s not great news if they’re hanging around your place.

Rats often chew wires and cause all sorts of structural headaches, but opossums rarely do that. Still, their droppings can create health risks you shouldn’t ignore.

Want to dig deeper into the diseases opossums can spread? Check out The Hidden Dangers of Opossum Infestation.

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