The dog’s superior sense of smell comes from 220 million scent receptors in their nose. That’s about 50 times more than humans have, giving dogs the ability to detect scents that are completely undetectable to us.

Dogs are drawn to strong odors, explains , a veterinarian with Pets Plus Us Insurance, tells Crotches, with their sweat glands and unique scent, are like a welcome mat for a dog’s nose. For medium to large dogs, the crotch is also easy to reach — much to the discomfort of your visitors.
Fortunately, there are ways to guide your dog’s curiosity into a more courteous greeting. Keep reading to find out why dogs sniff crotches and how you can redirect this behavior.
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