It's a little bit difficult to advise you if you are not already aware of what a healthy pussy is supposed to smell like.
They have an aroma that is intoxicating to most heterosexual guys.
Deviations from the intoxicating aroma are probably a bad sign....
But interestingly enough, some of the more serious infections you can get from a woman may not have any external sign or odor at all.
There may be herpetic lesions inside the vagina that you can't see, or genital warts. Many women with Chlamydia have subclinical cases and aren't aware that they have it.
Bacterial vaginosis (which smells fishy) or yeast infection (which smells like a brewery and can cause a whitish discharge) are gross, but are not going to cause you any lasting problems.
I diagnose bacterial, fungal, and parasitic infections for a living and have a degree in Microbiology (germs), so I know a lot about all of the above.
It may be a good idea to know a little bit about the woman, her habits, and how well she takes care of herself before approaching her vagina.:wink:
But I agree that the best way to protect oneself from all of the above is to use a condom. Oh, and by the way -- use it correctly. Read the directions on the package. It's amazing how many inexperienced (and "experienced") guys I encountered who didn't realize simple things, such as the fact that you should hold onto the base before pulling out.