Bacterial vaginosis is very common imbalance of the naturally occuring vaginal bacteria. There have been studies done that correlate the prescence of bacterial vaginosis with infertility but so far not able to say that bacterial vaginosis is a cause of infertility. However it is recommended that if bacterial vaginosis is detected when trying to conceive, that it be treated. Hope this helps and please write in if you have any further questions. Health Nurse