First few minutes
Just happened? Do this first
- Unplug the device and remove cables and external power.
- Dab with a soft, dry, lint-free cloth. Don't rub.
- Keep the cloth away from any openings while you work.
Urine on electronics is a tricky job because the liquid can creep into seams, ports and vents before you notice it. Unplug everything and remove the cables before you touch the spot, then keep moisture to a minimum. A fresh mark usually lifts with a dry or barely damp cloth, while an old, dried one may only fade and the smell can flare up on humid days.
Dried mouse pee stains on electronics are easy to miss, so check the vents and seams with a flashlight before you call it clean. For those, an enzyme cleaner for mouse urine can help, but spray it onto a cloth rather than into any port. Keep liquid away from the openings, and let the device dry fully before you power it back on.
Before you start
What electronics & screens can take
Use with care2
- Water
- Solvents (alcohol, spot removers)
Avoid4
- Soaking
- Chlorine bleach
- Oxygen bleach
- Scrubbing and abrasives
3 items
What you'll need
Tap an item to get it on Amazon, or tick what you already have.
- Soft, lint-free clothFor every pass, dry or slightly damp. (opens Amazon)
- Cleaner intended for screensFor displays only, applied to the cloth. (opens Amazon)
- Disinfecting wipeFor hard, nonporous parts when a smudge won't lift.
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5 steps
Step by step
Step 1 of 5
Unplug the device first
Unplug the device and remove all cables and external power before you touch the stain. That keeps the device safe while you work and keeps the cables out of the way.
Step 2 of 5
Dab the urine with a dry cloth
Use a soft, dry, lint-free cloth to dab up as much urine as you can, working from the edge of the stain toward the center. Press lightly and don't rub, because rubbing spreads the urine across the surface.
Tip. Turn to a clean section of the cloth after each dab.
Step 3 of 5
Wipe again with a damp cloth
If the mark is still there, dampen a soft, lint-free cloth so it's only slightly damp. Wipe the spot gently, then go over it once with a dry part of the cloth.
Careful. Don't get moisture into any openings, and don't submerge the device.
Step 4 of 5
Use screen cleaner on displays
If the mark is on a screen, apply a cleaner intended for screens to the cloth. Wipe the screen gently, then finish with a dry part of the cloth.
Careful. Don't spray cleaners directly onto the device; spray the cloth.
Step 5 of 5
Use a disinfecting wipe on hard parts
For a hard-to-remove smudge on a hard, nonporous part of the device, gently wipe the spot with a disinfecting wipe. Wipe in one gentle pass, then finish with a dry part of the cloth. A 70% isopropyl or 75% ethyl alcohol wipe can set some protein stains, so skip it.
Careful. The disinfecting wipe is for hard, nonporous parts only, not the display.
If you'd rather buy than mix
Best products for urine on electronics & screens
Use a cleaner intended for screens on the cloth for displays, and a disinfecting wipe only for hard, nonporous parts. Skip enzyme cleaners and household cleaners on the device.
Amazon Basics Microfiber Cleaning Cloths
How we picked these: each product is made for this type of stain, its maker doesn't warn against using it on electronics & screens, and its directions fit the steps above.
Finished the steps? How does it look?
Nice work. Let it dry completely and check it again in good light. Here is what done looks like:
How to tell it's really gone →A faint mark usually needs one more round, not a stronger product.
If the stain was already dried or set, the method changes.
Old, dried or set-in stains →When to call a professional →How to tell it's working
The mark should lift onto the cloth, and the spot should look even once it dries. Odor can linger after the stain is gone, so judge the job by smell as well as by sight.
What changes for yours
Adjust for your electronics & screens
Mouse Pee on Electronics
Mouse pee on electronics is handled the same way as any urine mark, so the steps above still apply. What changes is the care around the openings, since a small device has its openings packed close together.
Keep the cloth barely damp, and check the openings for any moisture before you reconnect cables. On a screen, the screen cleaner on the cloth is the only product to use.
Screen or display
On a display, the screen cleaner applied to the cloth is the only product that changes. Everything else in the steps stays the same, including the dry pass first.
Work in small areas and check each one before moving on. Finish with a dry part of the cloth so the glass isn't left wet.
Keyboard or case
The hard, nonporous case and keys are where the disinfecting wipe belongs, and only after the dry and damp passes have failed to lift the mark. Tight spots between keys need the corner of the cloth, kept barely damp.
Wipe in short strokes rather than pressing, so you don't push moisture into any gap. Let the area dry before you use the device again.
Ports, slots and cables
Ports and slots are openings, so they get no liquid at all, and the cables stay unplugged until the area is dry. Wipe only the outside edge of the port area with the dry cloth.
Let the area dry fully before you reconnect anything. If you think moisture got in, stop and get service rather than cleaning further.
Old, dried or set-in stains
An old mark, or one that has dried in, is harder to lift, but on electronics the answer is still the gentle steps above, repeated rather than made stronger. Don't move to a harsher product, since the device's care instructions don't allow one.
After the dry and damp passes, the screen cleaner or the disinfecting wipe on a hard part is the most you should add. If the mark still shows after that, you've reached the limit of what home methods should do on this device.
The realistic goal is a clean-looking surface, and odor can remain even when the mark is gone. If either is still there, a service provider is the next step rather than harsher cleaning at home.
Vinegar, baking soda, peroxide and more
Do home remedies work on urine on electronics & screens?
Many home fixes for urine are built for fabric and hard floors, and several are unsafe on displays or near the device's openings. Keep to a dry lint-free cloth, use a disinfecting wipe only on hard, nonporous parts, and never spray the device. Anything beyond a dry cloth and a wipe on hard parts puts the screen and openings at risk, so skip it.
Skip2Avoid4
What makes it worse
Mistakes to avoid
Don't use bleach or hydrogen peroxide
Chlorine bleach, oxygen bleach and hydrogen peroxide products are all off limits for this device. Bleach also doesn't remove urine odor, so it wouldn't fix the smell even if it were safe to use.
Don't use paper towels or abrasive cloths
Paper towels are a common fix for blotting urine, but they're not allowed on electronics. Stick with a soft, dry, lint-free cloth for every pass, including the damp one.
Don't use household cleaners on displays
Window cleaners, household cleaners, aerosol sprays, solvents, ammonia and abrasives don't belong on any display. Cleaners containing acetone are out too, even if the label sounds gentle.
Don't mix alcohol with ammonia
Never mix ammonia with alcohol or with chlorine bleach. Keep each product on its own cloth and use one at a time.
When to call a professional
If liquid has gotten inside the device, stop wiping and get it looked at by an authorized service provider for your device. Don't keep working on the ports or openings yourself. Bring the device in unplugged, with its cables if you have them.
Questions
What do mouse urine stains look like?
Dried urine shows up as a stain, and the odor is often what gives it away. Urine soaks in as it dries and leaves a mark that can become more noticeable over time, and the smell can flare up on humid days.
Does mouse pee stain electronics?
Yes, it can. Urine that soaks in and dries leaves a stain, and the odor can last as long as there is moisture. Acting early, with dry and barely damp lint-free cloths, gives you the best chance of clearing it.
How do I tell dried mouse urine from other marks?
Look for a mark that has dried in and a smell that flares up on humid days, since urine odor tends to come back that way. Treat any suspect mark the same gentle way, starting with a dry, lint-free cloth.
Can I use an enzyme cleaner for mouse urine on electronics?
Not on the device itself, since the guidance for electronics doesn't cover enzyme cleaners at all. Use a cleaner intended for screens on the cloth for displays, or a disinfecting wipe for hard parts, instead.
Can I use chlorine bleach to get rid of the smell?
No. Chlorine bleach is off limits on this device, and bleach doesn't remove urine odor in any case. If the smell lingers after the cloth steps, that's the point to get the device looked at rather than adding anything harsher.
Can I wipe the screen with a disinfecting wipe?
No. Disinfecting wipes are only for hard, nonporous parts, and the display is not one of them.
The screen needs a cleaner made for screens, applied to a cloth. If the mark is still there after that, leave it and don't try another wipe on the glass.
Urine on other materials
Other stains on electronics & screens
Start from the bigger picture
How we know this
Every method, amount and warning here comes from university extension services, industry bodies and product makers. We read them, check every step for unsafe combinations and changed amounts, and write it up so you can follow it.