woods light for ringworm

woods light for ringworm

A Wood’s light emits an ultraviolet beam that causes skin fluorescence in the presence of Microsporum Canis. The light must be used for several minutes before fluorescence will appear. If the skin shows no fluorescence, the cat may still have the disease. Based on her experience, Dr. Karen Moriello, University of Wisconsin-Madison, recommends use of an electric ultraviolet light versus a battery-powered model.

woods light for ringworm vs a Vet examination

Your veterinarian may wish to examine some hairs for microscopic spores. If spores can be seen on damaged hairs or lesion samples then the diagnosis of ringworm is confirmed; however, as spores are very difficult to see, many veterinarians may not rely this method of detection.

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