Why does my dog have white spots or patches of hair loss on his leg?

Question

Why does my dog have white spots on his leg. Pet's info: Dog | Mixed Breed | Male | 2 years and 5 months old | 50 lbs

Jessica Keay, DVM · Accepted Answer

From the photos here it looks like these are patches of hair loss. We can have hair loss at points of pressure if a dog likes to lay on hard surfaces, but we also worry about things like ringworm (a fungal infection), skin mites, and bacterial infection causing patches of hair loss. I would recommend bringing your dog in to the vet to examine the area. They may recommend a fungal culture if ringworm is suspected or a cytology of the skin to check for bacteria or a skin scrape to check for mites.

Why does my dog have white spots or patches of hair loss on his leg?

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