First you need to determine whether your dog has fleas. Fleas love warm areas, so places around your dog's belly and groin are prime flea stomping grounds. Around the base of the tail is also a place to look for fleas. Of course, if you see an adult flea hopping around, it's a good bet that fleas are present.
Use a flea comb (see Chapter 3) to look for fleas. If you see blackish or reddish grains that turn red when wet, you're looking at flea feces (yes, flea poop), and you can bet fleas are on your dog.
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