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Mouse in the House? How to Identify Mouse Droppings

Here’s a quick rule of thumb when it comes to mice – if you see one mouse in your house, you probably have an infestation. Why? Because at the rate mice reproduce – a typical female can give birth to a dozen babies every three weeks – that “mouse” doesn’t figure to be singular for very long. An easy way to spot early signs of a mouse infestation is to be on the lookout for mouse droppings.

So infestations can happen quickly, which is why it pays to be vigilant about any possible sign of a problem – because it doesn’t take an actual mouse sighting to know if you’re headed for trouble. To nip a possible infestation in the bud, it helps to know how to identify mouse droppings – and what to do if you find them.

What do mouse droppings look like?

Mouse Droppings
Mouse droppings are generally black and granular in shape, measuring roughly 3 to 6 mm in length. They are about the size of a grain of rice, just black in color.

What do mouse droppings tell you?

Because mice aren’t big on cleaning up after themselves, anywhere you find mouse droppings is a place where mice have been. In general, you’ll find droppings in areas where mice have been most active – usually nesting and/or breeding – and once you see droppings you can be fairly confident that you have a mouse (soon to be mice?) in the house.

Are mouse droppings hard to find?

Probably not. One mouse can produce between 40 and 100 droppings per day and leave behind a constant trail of urine wherever it moves. And normally it’s not just the fecal matter that gives away that a mouse was there. Mice often times travel the same runways and leave behind loads of other debris. It can be anything from food, wood chips, leaves, etc.
Mouse Droppings

Do mouse droppings pose any health risks?

Any kind of animal waste is usually a health hazard, and mouse droppings are certainly no exception. Droppings may carry harmful bacteria, diseases and viruses, including potentially life-threatening illnesses such as Hantavirus and salmonellosis. This is yet another reason to identify and deal with an infestation as early as possible.

Yikes! Is there anything else I should be concerned about?

If you think their droppings are bad, wait until you see how mice behave once they move in. It’s not at all unusual for mice to chew their way through wallboards, insulation, wood and electrical wiring.

I may have an infestation – what should I do?

If you’ve seen mouse droppings or other telltale signs of a possible mouse infestation – such as chewed wires, shredded cardboard or partially eaten food in a storage area – don’t try to tackle the problem yourself. Given the potential health risks, a pest professional is your best bet for the expertise and knowledge to confirm you suspicions and find a solution.

Call Erdye’s for a FREE inspection of your basement, attic or crawlspace – we’ll track down your unwanted guests and come up with a safe, reliable plan to get rid of them.

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