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Home / Rodent Guide / Are Rat and Mouse Droppings Dangerous? How to Clean Them Up Safely
Finding droppings in a pantry, garage or attic raises two questions: is it dangerous, and how do I clean it up? The short version is that droppings deserve care, but safe cleanup is straightforward if you follow a few rules.
By Spring Hill Rodent Pros \u{00B7} Updated November 11, 2026 \u{00B7} 4 min read
Yes, rat and mouse droppings, urine and nesting material can carry germs that cause illness, including bacteria such as Salmonella and Leptospira and, in some rodents, hantavirus. The biggest risk comes from breathing in dust when droppings are swept or vacuumed dry. Ventilate the area, wear gloves, wet the droppings with disinfectant or bleach solution, wait 5 minutes and wipe them up with paper towels.
Rodents leave droppings and urine wherever they travel and feed. Those wastes can contaminate food, counters and stored items, and when they dry and are disturbed, tiny particles can become airborne. Germs linked to rodent waste include Salmonella, which causes food poisoning, and Leptospira, the bacteria behind leptospirosis, which spreads through urine and contaminated water.
Hantavirus gets the most attention. In the western United States it is mainly carried by deer mice, which are not common in Florida. Here, the Florida Department of Health reports that a hantavirus called Black Creek Canal virus was found in hispid cotton rats, a native rodent common around residential areas. Human cases in Florida are rare, but the same cleanup precautions apply to droppings from any rodent.
Identifying the droppings helps you understand what you are dealing with. UF/IFAS Extension describes three common types.
Fresh droppings are dark and soft; older droppings are dry, gray and crumble easily. Fresh droppings mean rodents are still active. Read more about roof rats vs Norway rats.
The CDC recommends wet cleaning instead of sweeping or vacuuming, which can stir up contaminated dust.
Small amounts of droppings in a cabinet are easy to handle yourself. Call for help when there are droppings throughout an attic or crawl space, insulation is soaked or heavily soiled, the area is hard to reach or ventilate, or anyone in the home has a weakened immune system or breathing problems. A professional can also find and seal the entry points, which is the only way to stop new droppings appearing. See our rodent cleanup and sanitation service.
Germs in rodent droppings and urine can cause illness if they get on your hands and then into your mouth, or if contaminated dust is inhaled. Wear gloves, wet the droppings with disinfectant before removing them and wash your hands afterward.
The risk is low. The Florida Department of Health reports hantavirus in native cotton rats, and human cases in the state are rare. The CDC cleanup steps protect against hantavirus and other rodent-borne germs.
No. Vacuuming or sweeping dry droppings can put contaminated particles into the air. Wet them with disinfectant or bleach solution first and wipe them up with paper towels.
Call and tell us where you are and what you are hearing, seeing or smelling. A local rodent specialist can then set up an inspection of your attic, crawl space, garage and exterior.