• Age
• Sex
• Mood
• Health
• Hormonal changes
• Emotional state
• Reproductive status

To dogs, smell works almost like a detailed biography.

Why Dogs Go Straight for the Crotch

As awkward as it feels for humans, dogs are not trying to embarrass anyone.

They’re simply gathering information the fastest way they know how.

Humans have special sweat glands called apocrine glands, mainly located in the armpits and groin area. These glands release pheromones and chemical signals that dogs can easily detect.

Because dogs are shorter than humans, the crotch area is often the easiest place for them to access those scent signals.

For dogs, it’s basically the equivalent of a handshake.

That’s also why dogs greet each other by sniffing rear ends. The strongest scent information is concentrated around the genitals and anus.

To a dog, this behavior is normal social communication.

Some Dog Breeds Are Even More Obsessed With Smelling

Certain breeds are especially driven by scent instincts.

These include: