Pro-Tip: Check the walls and furniture for splatters next to any stains you find, like shown in the photo below (especially true if you have a male dog).

You can’t always see pee stains, especially on dark carpet, and smells from pee stains left on the carpet can cause your dog to repeatedly mark that spot. If you’re curious if your dog has been having accidents, here are some places you can start your search:

Liquorbar lights

If there are no smells or your dog isn’t repeatedly marking one area, it doesn’t mean you’re in the clear. Rather than putting your nose to the floor trying to discover where that smell is coming from, you can find dried urine stains on carpet and furniture with a blacklight. Unleash your inner scientist and scan the light on your floors to find the stains.

A compact, extremely bright & uniform LED line light with a modular design. Can be built to any length. Up to 1500 kLux of uniform light (CW).

Bar lightsLED

This UV flashlight is less expensive, however, the wavelength from this UV Blacklight Torch (365–370nm) is more effective — but it's a pricey gadget.

Wavelengths in a blacklight cause phosphorous and proteins in the urine to glow, making it easier to spot old stains. Pet stains that weren't cleaned properly with an enzyme-based cleaner will show up under UV light as well.

Bar lightshanging

Feb 19, 2007 — Ott Light has a couple of solutions with light & magnifier combos. I personally prefer the Ott true color type light, it is cooler. You can pick ...

Want to experiment with a black light on some fun things in your home? Try lighting these up: cotton balls, brown spots on banana peels, some flowers, B-vitamins, and newer US currency over $5 (they have fluorescent bands to prove they’re not counterfeit).

Bar lightsCar

Polarized light microscopy is capable of providing information on absorption color and optical path boundaries between minerals of differing refractive indices, ...

The basic idea is to focus on the object by adjusting the depth of field with the aperture and brightness of the lighting.

Browse our collection of industrial lighted magnifying glass lamps for soldering workbenches. These magnifier lamps are perfect for precision work.

Our mission is to help save dogs' and cats’ lives through our educational content. To support our efforts, this page may contain affiliate links. We earn a commission for qualifying purchases – at no cost to you.

Once you’ve found the urine stains, it’s time to clean them up with an enzyme-based cleaner that will neutralize the odors and remove the stain. Use our tips and recommended cleaners for cleaning up potty accidents to make sure you only have to do this once.

Bar lightsCeiling

The LUX/FC Meter also includes a peak function, reads in both LUC and foot candles and min/max as well as a bar graph display. The advanced light meter features ...

When exposed to ultraviolet beams of black light, lots of things will glow white, green, blue, orange, or even red. While dog pee glows under this type of light, so will liquids and other liquid-like substances, such as some laundry detergents, milk, honey, canola or olive oil, ketchup, tonic water, and antifreeze. Blacklight is also used to detect molds and fungi, including some of the fungi species that cause ringworm.

Bar LightsAmazon

Approach for replacing integrated LED light in above sink light fixture? Hello all! I have recently purchased the pictured light fixture, with ...

If you’ve found and cleaned the urine spots on your floors and your dog is still having accidents inside, your dog may have a medical issue, like diabetes, Cushing’s disease, kidney dysfunction, or a urinary tract infection (UTI), that could be making it more difficult to not go potty indoors. If you have concerns, always consult your veterinarian.

UV curing is a photochemical process that instantly cures inks, coatings, or adhesives using UltraViolet light.

Please do not ask emergency or other specific medical questions about your pets in the blog comments. As an online informational resource, Preventive Vet is unable to and does not provide specific medical advice or counseling. A thorough physical exam, patient history, and an established veterinary-patient-client relationship is required to provide specific medical advice. If you are worried that your pet is having an emergency or if you have specific medical questions related to your pet’s current or chronic medical conditions, please contact or visit your veterinarian, an animal-specific poison control hotline, or your local emergency veterinary care center.

Sharp Clarity for Every Detail: Our 2X magnifying glass features high-quality optical glass lenses that provide sharp magnification without distortion, ...

Marissa Busch is a Content Marketing Specialist that gets to combine her love of animals and writing to contribute to the Preventive Vet blog. She lives in Seattle with her husband and miniature Goldendoodle Mary Berry. When she's not working, Marissa can be found training for half marathons, exploring dog-friendly breweries, or experimenting with a new baking recipe.

189x157mm (7.440x6.181 in. ) Lens Type, Convex. Magnifier Lens Material, Green Float Glass. Head Size, 300x215mm (11.811x8.464 ...

Pro-Tip: When moving into a new home, it can be helpful to use a blacklight to see if there are any messes that the previous tenant or homeowner didn’t clean properly to prevent your dog from having accidents in the same places.

Pro-Tip: A blacklight works best the darker the room is. Try to do your searching at night, unless you’ve got good blackout curtains or other means of really darkening a room during the day.

FYI: The greater the wavelength, the better visibility for fluorescing proteins in urine. Both of these lights will work, but the less expensive light will typically only work in a very dark room.

Please share your experiences and stories, your opinions and feedback about this blog, or what you've learned that you'd like to share with others.

Don’t have a blacklight handy, but want to check your floors? Check out this “hack” for turning your iPhone flashlight into a makeshift blacklight: