Lover got fishy/off bad vag? You have it too.

If any of your female sexual partners that you go bareback with (or share body fluids with at all) have been diagnosed with bacterial vaginosis (caused primarily by the bacteria Gardnerella vaginalis), you need to know about it, because the biofilm is probably on your penis too. This means you can spread that to your other sexual partners, and/or back to the original sexual partner, perpetuating the problem.

You need treatment too, and you cannot ignore this as just a women’s problem. It has been clearly demonstrated that BV is, in many cases, sexually transmitted – that means you may be spreading it, and actually causing bad vag! If you are uncircumcised, you are even more at risk of spreading BV-causing bacteria between women.

Don’t let the name fool you – one of our favourite BV researchers, Swidsinski, says: “The correct name distinguishing it from symptom-defined conditions like BV should be gardnerellosis and for the bacterium Gardnerella genitalis.”

     Bad vag (BV) symptoms in women:

  • Fishy odour
  • Off-smelling vagina
  • Bad smell and taste of vaginal fluids
  • Watery greyish discharge


Here is the evidence that you have BV bacterial biofilms – with no symptoms – on your penis:


1. Study title: Gardnerella biofilm involves females and males and is transmitted sexually

“Cohesive Gardnerella was present in all patients with proven BV and their partners… Cohesive Gardnerella biofilm is a distinct, clearly definable entity which involves both genders and is sexually transmitted.”

2. Study title: Desquamated epithelial cells covered with a polymicrobial biofilm typical for bacterial vaginosis are present in randomly selected cryopreserved donor semen

‘Desquamated epithelial cells covered with a polymicrobial Gardnerella biofilm were identified in urine samples from all [20] women with BV and 13 of their male partners and in none of the female controls and their partners’

3. Study title: Prevalence of Gardnerella vaginalis in Male Sexual Partners of Women With and Without Bacterial Vaginosis

In males, G. vaginalis has been repeatedly recovered from the urethra and from seminal fluid. Sexual contact studies point to the sexual transmissibility of G. vaginalis. In 1955, Gardner and Dukes reported that they had isolated Gardnerella from the urethra of 86% of husbands of women with BV. Similarly, in 1978, Pheiffer et al. demonstrated the concordance of Gardnerella among 79% of couples in which the woman had BV versus 0% of couples in which the woman did not have BV. 

     Treatment for BV-related biofilms in men

This is a bit complex, since western medicine still hasn’t caught up beyond giving antibiotics, which we know by now only works half the time in women, and because antibiotics can’t break down biofilms, we could anticipate that antibiotics will not work in men.

We’ve written a book on how to get rid of BV in women (Killing BV), by removing the bacterial biofilm that keeps BV recurrent (it never goes away), but we’ve also published a book specifically for men on how to remove the BV biofilm from the penis. These books are essential reading for any woman struggling with BV, and her sexual partner, who is quite likely contributing to the problem with penis biofilms. Every book comes with free email support and access to the support section for men and women.

Buy the two-book Killing BV collection for men and women