Why do male cats still have sexual impulses after sterilization?

For sexually mature male cats, as long as they smell pheromones or similar smells, they may trigger sexual impulses, including when male cats clean themselves up.

If a male cat is sterilized before reaching sexual maturity, there is generally no sexual impulse. However, if the male cat is sterilized after sexual maturity or mating experience, the male cat will still maintain its original motor reflex, and some will even mate with the estrus female cat.

But generally speaking, due to the lack of relevant androgen stimulation, male cats will gradually stop having this impulse.