Dogs may detect changes in hormones like estrogen and progesterone.
Ovulation
Female hormonal cycles alter body chemistry, producing subtle scent differences that dogs may notice.
Menstruation
Dogs may detect menstrual blood and hormonal changes, although individual reactions vary.
Puberty
Teenagers going through puberty produce different hormone levels, which can also attract a dog’s attention.
Can Dogs Smell Medical Conditions?
Yes—but not every sniff means illness.
Research has shown that specially trained dogs can detect certain diseases, including:
* Some cancers
* Diabetes
* Low blood sugar
* Epileptic seizures
* Parkinson’s disease
* Certain infections
These dogs identify changes in volatile organic compounds (VOCs) released through breath, sweat, or bodily fluids.
However, an ordinary pet sniffing your crotch does not mean you have cancer or another disease.
Dogs sniff people every day simply because that’s how they explore the world.
Your Dog Might Be Curious About Where You’ve Been
Dogs can tell if you’ve:
* Visited another person’s house
* Been around another dog
* Played with a cat
* Walked through a park
* Visited a veterinary clinic
* Been near livestock or wildlife
Your clothing carries these scents, making you a fascinating source of information.
