can women smell easily
Women have a better sense of smell than men. “Women always are better at odor and smell identification than men, and every study finds that,” says Malaspina. She says one of the reasons for this may be that women have a more developed orbital prefrontal region of the brain.
It is an overgrowth of bacteria in a woman's vagina, it is not an infection given to her by someone else. The answere to your question is yes and yes. The man should also be treated (antibiotics). yes, guys can easily carry bacteria without any signs, but I think as long as they are cleaned well, before sex, it isnt a problem.