Bacterial vaginosis is the most common type of vaginal infection. To learn more about other common types, see the topics Vaginal Yeast Infections and Trichomoniasis
Bacterial vaginosis is a mild infection of the vagina caused by bacteria. Normally, there are a lot of “good” bacteria and some “bad” bacteria in the vagina. The good types help control the growth of the bad types. In women with bacterial vaginosis, the balance is upset. There are not enough good bacteria and too many bad bacteria.

Bacterial vaginosis is usually a mild problem that goes away on its own in a few days. But it can lead to more serious problems, so it’s a good idea to see your doctor and get treatment.

Experts are not sure what causes the bacteria in the vagina to get out of balance. But certain things make it more likely to happen. Your risk of getting bacterial vaginosis is higher if you:

Have more than one sex partner.
Have a female sex partner.
Have a sexually transmitted disease (STD).
Use an IUD for birth control.
Douche.
You may be able to avoid bacterial vaginosis if you limit your number of sex partners and don’t douche.

Bacterial vaginosis is more common in women who are sexually active, but it is not something you catch from another person.

If You were really worried I’d see a dr but since you wore a condom I doubt you have a problem.

Usually, men don’t have to get tested for a condition that is caused by other factors in a woman’s overall vaginal health, but if you’re concerned, go to your doctor and explain the situation to him. It’s possible that they will prescribe an antibiotic for precautionary measures, but it’s better to be safe than sorry.