Dogs have an incredible sense of smell—estimated to be 10,000 to 100,000 times stronger than a human’s. Because of this, they gather detailed information through scent that humans cannot detect.
When a dog sniffs someone, it’s not being rude or inappropriate. It’s simply collecting information.
Dogs can detect clues about:
Age
Biological sex
Mood or stress levels
Hormonal changes
Overall health signals
For dogs, sniffing is similar to how humans introduce themselves with a handshake.
Why Dogs Specifically Sniff the Genital Area
Humans have special sweat glands called apocrine glands. These glands release pheromones—chemical signals that carry information about the body.
Apocrine glands are mainly found in:
Armpits
Genital areas
Because a dog’s nose is closer to waist height, the genital area is often the easiest place for them to detect these scents.
