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138 results for “wood's lamp”
My Kitten’s Tail Lost Fur, Shows Green Under a Wood’s Lamp, and Has Yellow-Brown Discharge
Green fluorescence under a Wood's lamp indicates a fungal infection. The yellow-brown secretions are likely crusted discharge from infection and skin damage. Clip and clean the area, then use an antifungal medication.
My cat has skin disease and hair loss, but a Wood’s lamp says it’s not ringworm.
The photo suggests eczema or allergy. Find the allergen and use vet antihistamines. Eczema, stress, or poor nutrition can also cause loss—see a vet to confirm.
Shone a Wood’s lamp on the nose and saw green; is it ringworm?
Green fluorescence under a Wood's lamp suggests but does not confirm ringworm; scabs can also glow. Clean the scab first; the lamp is unreliable, so see a vet if symptoms appear.
My cat has scaling and hair loss that did not respond to ringworm treatment; a Wood’s lamp showed no glow – is it another fungus?
The scales may be from dry skin, poor nutrition or a damaged skin barrier, not ringworm. Use a collar, clean well, add water and vitamins, and see a vet if worse.
I Used a Wood’s Lamp and It Doesn’t Look Like Ringworm, but Now It’s Just Red. What Disease Is It?
The photo suggests bacterial infection or ringworm; a Wood's lamp is only about 70 percent accurate, so a vet microscopy check is best to identify the infection type and treat with anti-inflammatories.
Kitten, Two and a Half Months, Home a Week, Dewormed 11.9 with Advantage, Checkup 11.16 Showed Wood’s Lamp Fluorescence, I Treated with Iodine and Ketoconazole but Skin Wrinkled Yesterday and Scabbed Today: Better or Worse?
Wood's lamp fluorescence with scabbing and hair loss strongly suggests ringworm, a stubborn condition needing continued vet-guided treatment. In recovery, hair regrows and scabs fade, so a fresh scab alone isn't clearly better or worse without that trend.
Our cat has dandruff for no reason – not bald, not red – but under a Wood’s lamp everything glows green. We also have red marks on our skin, but the cat’s dandruff has been there a while and we didn’t notice red marks then. Is it ringworm?
Based on your description, a cat with a lot of dandruff but no hair loss and no redness is not necessarily ringworm - it could also be an early stage of ringworm. In the middle stage there is heavy hair loss, and the affected area becomes damaged and red from scratching; later it becomes generalized ringworm. A cat with ringworm shows signs such as red patches, patchy hair loss, red skin, scratching, scabbing, red bumps, and abundant dandruff. It is recommended to use a Wood's lamp, shining it on the affected hair follicles (not on the fur), but the lamp test may produce false positives and is not very accurate. Therefore, take the cat to the hospital promptly for a skin scraping and microscopic examination; once diagnosed, start targeted medication right away.
My Cat’s Ear Started Peeling and Losing Fur Around July 1; the Skin and Fur Came Off Together When Scratched, a Wood’s Lamp Showed a Glow, and I Applied Compound Ketoconazole Ointment After Cleaning with Saline. Two Small Spots Healed, but a Larger One Turned Black and Scabbed. Thank You.
Based on your description, the darkening of a cat's ear skin after a ringworm infection usually has two causes: severe fungal damage to the skin base causing pigmentation, or the combined effect of long-term medication and antifungal-drug hormones.
Ringworm shows no green glow under a Wood’s lamp, scaling is nearly gone, but it’s still red and fur still comes out in clumps when pulled — what now?
Not all fungal infections glow green under a Wood's lamp (accuracy under 60%, only Microsporum shows). Persistent redness and hair loss after treatment may mean a mixed infection or non-Microsporum fungus — get a skin scrape or culture at the vet for the right medication.
What Does Ringworm Look Like Under a Wood’s Lamp?
When a cat loses fur, flakes, or develops bumps, many owners grab a flashlight to check for ringworm—but a normal torch shows nothing. Only a Wood's lamp makes the fungus fluoresce, and even then you can be fooled by false positives. Learn what true apple-green glow looks like, the classic symptoms, and why a negative lamp never rules ringworm out.