Rat droppings vs. mouse droppings - what’s the difference?

Mouse droppings are small, dark, and easy to miss at first glance. They're often scattered across a wide area because mice roam constantly in search of food.

• Appearance — Roughly 1/4 inch long with pointed ends at both tips; dark brown or black when fresh, turning gray as they dry out; similar in size and shape to a grain of rice
• Location — Scattered along baseboards, inside cupboards and drawers, near food packaging, and in wall voids or nesting areas
• Volume — Mice produce a large number of droppings ( up to 70 per day), so you may find them spread across a wide area
• Risks — Mouse droppings can carry bacteria like Salmonella and may trigger allergic reactions

Rat droppings are much harder to miss. They're significantly larger than mouse droppings and are typically found in concentrated areas near where rats are feeding or nesting.

• Appearance — Roughly 1/2 to 3/4 inch long with blunt or rounded ends; dark brown or black when fresh, becoming gray and brittle over time
• Location — Clustered near food sources, along travel routes, in wall voids, attics, and basements; rats tend to return to the same areas repeatedly
• Volume — Rats produce around 40 droppings per day, typically in concentrated spots rather than scattered widely
• Risks — Rat droppings can carry serious diseases, including leptospirosis and hantavirus