Do Unfixed Male Dogs Smell?

Neutering, when done early in life, can reduce aggressiveness and improve behavior overall. For example, it decreases the always-embarrassing "mounting" behavior in dogs. Few things smell worse than intact male cat urine.

Do male dogs put off a scent?

Since females are only receptive to amorous male attention when they have entered the period of their cycle known as standing heat, this odor helps male dogs to detect when ovulation has occurred, and the female is ripe for conception.

Do neutered dogs smell different?

Males excrete plenty of oestrogen in their urine. So making a wild guess (not seen in the research), without a large amount of testosterone production, then do some male neutered dogs smell more like a female in season.