Do You Have a Rodent Problem: A Self-Test

Are You Sharing Your Home with Unwanted Guests?

Most homeowners don’t realize they have a rodent problem until it’s too late. Mice and rats are experts at hiding, and by the time you see one, there’s a good chance their family is already well-established. But how can you be sure? This quick self-test will help you determine if rodents have invaded your home.

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1. Strange Noises at Night

Do you hear scratching, squeaking, or scurrying sounds, especially at night?
Do these noises seem to come from inside walls, ceilings, or under the floor?

Rodents are nocturnal, meaning they’re most active at night. If you’re hearing unexplained noises in the dark, you may have unwanted visitors.

2. Droppings & Urine Marks

Have you noticed small, dark, pellet-shaped droppings in your kitchen, pantry, or along walls?
Do you see yellowish stains on floors, baseboards, or inside cabinets?

Rodent droppings are a clear sign of infestation. Mouse droppings are small (about the size of a grain of rice), while rat droppings are larger and more rounded.

3. Gnawed Furniture, Wiring, or Food Packaging

Are there chew marks on food packaging, baseboards, wires, or furniture?
Have you found shredded paper, insulation, or fabric in unusual places?

Rodents constantly gnaw to keep their teeth from overgrowing. If you notice damage to wires, furniture, or food containers, you could have a problem.

4. Unusual Pet Behavior

Is your dog or cat suddenly fixated on certain areas, such as under appliances or inside walls?
Have they been acting more alert or aggressive without explanation?

Pets can sense and hear rodents before humans do. If your pet is unusually interested in a specific spot, take note!

5. Greasy Smudges & Tracks

Have you seen greasy streaks or smudges along walls and floorboards?
Have you found tiny footprints or tail drag marks in dusty areas?

Rodents use the same paths repeatedly, leaving behind oily residue from their fur. Checking for these marks can confirm their presence.

6. A Strong, Musty Smell

Have you noticed a persistent musky odor in certain areas of your home?
Does the smell seem to come from behind walls or beneath furniture?

Rodent nests produce a distinct, musty odor. If there’s a strong, unexplainable smell, rodents may be nesting nearby.

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What Your Score Means

✅ 0-1 Checks: You’re likely rodent-free—stay vigilant and maintain good home hygiene.

⚠️ 2-3 Checks: Possible rodent activity—inspect your home further and take preventive action.

🚨 4 or More Checks: High risk of infestation—take immediate steps to remove and control rodents!

Next Steps: How to Handle a Rodent Problem

If your self-test suggests a rodent problem, don’t wait. Here’s what to do next:

• Seal Entry Points: Check for and seal gaps around doors, windows, and utility openings.
• Eliminate Food Sources: Store food in airtight containers and clean up crumbs or spills immediately.
• Set Traps: Use snap traps, live traps, or electronic traps in high-activity areas.
• Call a Professional: If the infestation is severe, professional pest control may be necessary.

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Final Thoughts: Take Action Now

Rodents multiply rapidly, meaning a small issue can quickly turn into a major infestation. If you suspect rodent activity in your home, don’t ignore the warning signs. Use this self-test as your first step toward a rodent-free home!

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Relevant Links/Sources:

Signs of a Rodent Infestation – CDC How to Identify Rodent Droppings – NPIC