Raccoon droppings in your yard are more than an unpleasant surprise. They can carry a dangerous parasite called raccoon roundworm, whose eggs survive in soil for years. Identifying the droppings correctly and cleaning them up safely matters more than you might expect.
How to Identify Raccoon Droppings
Raccoon feces are tubular, 2 to 3 inches long, and about half to three-quarters of an inch in diameter, roughly the width of a nickel or dime. Fresh droppings are dark brown to nearly black and lighten as they dry out. The most telling feature is their blunt, flat ends, which distinguishes them from opossum droppings (tapered, pointed ends) and most other wildlife scat.
You’ll often see undigested seeds, berry fragments, or corn kernels mixed in, since raccoons eat just about anything. The droppings can look similar to small dog feces at first glance, but raccoon scat tends to be more uniform in width from end to end, and it almost always shows up in the same spot repeatedly.
Raccoons Use “Latrines”
Unlike most animals, raccoons don’t scatter their droppings randomly. They return to the same location again and again, creating what’s called a latrine. These accumulation sites are the real concern, because concentrated feces means concentrated parasite eggs in one area of your yard.
Common latrine locations include the base of large trees, tree stumps, flat rocks, fallen logs, woodpiles, decks, and rooftops. If you find a pile of droppings rather than a single stray piece, you’re almost certainly looking at a raccoon latrine. Raccoons also favor elevated or horizontal surfaces, so check the tops of stumps and large rocks.
Why Raccoon Feces Are a Serious Health Risk
Raccoon roundworm (Baylisascaris procyonis) is a large intestinal parasite that doesn’t harm raccoons but can cause severe illness in humans. The worm’s eggs are shed in raccoon feces, and infection happens when someone accidentally swallows them, typically by touching contaminated soil or surfaces and then touching their mouth.
Children are at highest risk because they’re more likely to play in dirt and put their hands in their mouths. Symptoms appear one to four weeks after exposure and can range from nausea and fatigue to liver enlargement, loss of coordination, loss of muscle control, blindness, and in extreme cases, coma. Infections are rare, but the consequences are serious enough that you should treat any raccoon latrine in your yard as a genuine hazard rather than a nuisance.
The eggs are extraordinarily resilient. Under laboratory conditions, they’ve survived 8 to 10 years, and they persist through harsh winters in outdoor soil for several years. Standard disinfectants, including bleach, do not kill them.
How to Clean Up Raccoon Droppings Safely
Because the eggs resist most chemicals, cleanup relies on physical removal and extreme heat. Before you touch anything, put on disposable gloves, a mask, rubber boots, and clothes you can either throw away or wash immediately in hot water with detergent. Avoid stirring up dust from dried feces, since eggs can become airborne.
For hard surfaces like decks, patios, or rocks, collect the feces in a heavy plastic bag and seal it for disposal with your regular trash. Then pour boiling water over the contaminated area. Boiling water kills raccoon roundworm eggs on contact, which bleach and other household cleaners cannot do.
For soil and grass, the process is harder. Scoop up as much fecal material as possible and bag it. If you can remove the top layer of soil (a few inches deep), that’s ideal. A propane torch can be used to flame contaminated ground, which destroys eggs instantly. The recommended approach is to break up and turn over the contaminated soil several times, flaming each time. Be cautious with this method near dry grass, mulch, or wooden structures.
After cleanup, wash your hands thoroughly with soap and warm water, and launder your clothes in hot water. If you used rubber boots, scrub and disinfect them with boiling water as well.
Keeping Raccoons Out of Your Yard
Once you’ve cleaned up a latrine, raccoons will try to return to the same spot. The most effective long-term strategy is removing what attracts them in the first place: food and shelter.
- Secure garbage cans with tight-fitting lids, and use wire or clamps to prevent raccoons from prying them open.
- Remove outdoor pet food and birdseed at night, when raccoons are most active.
- Block access to sheltered spaces under decks, porches, and sheds with heavy wire mesh.
- Wrap trees with metal flashing (aluminum or galvanized sheet metal) to prevent climbing. This is especially useful if a latrine was at the base of a particular tree.
- Install electric fencing if raccoons are persistent. A single hot wire 6 to 10 inches above the ground is effective at deterring them from entering specific areas.
Frightening devices like motion-activated lights, radios, pie pans, and plastic windmills only work temporarily. Raccoons habituate to them quickly. There are also no repellents, toxicants, or fumigants registered for raccoon control, so products marketed as raccoon deterrent sprays have no proven long-term effectiveness. Physical exclusion, making your yard less hospitable, is the only reliable approach.
When Professional Cleanup Makes Sense
A single small pile of droppings on a hard surface is manageable with the precautions described above. But if you find a large, well-established latrine, droppings in an attic or crawlspace, or contamination spread across a wide area of soil, hiring a wildlife removal or hazmat cleanup service is worth the cost. Professionals have the equipment to safely remove contaminated soil and insulation, and they can assess whether roundworm eggs have spread beyond the visible latrine site. This is especially important if young children regularly play in the affected area.