Mouse or rat? Telling the difference

The treatment plan changes if you have rats rather than mice. Droppings, gap size and where you find activity are more reliable than a fleeting glimpse.

Size and shape

An adult house mouse is about 7–10 cm plus tail. A brown rat is much heavier, with a thicker tail and blunt muzzle.

Droppings

Rice-grain droppings scattered in cupboards usually mean mice. Raisin-sized groups along a wall or in a loft more often mean rats.

Entry gaps

Mice use gaps of about 6 mm. Rats need a little more but will enlarge a hole. Tooth marks on a door base that look heavy are more typical of rats.

If you are unsure

Photograph droppings next to a coin and note the rooms involved. That is enough for a technician to plan the first visit.

If you need a visit, our mice control service or call +44 7776 111596.

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