Complications
In most cases, BV causes no complications. There have been documented risks of BV, however, such as an association between BV and pelvic inflammatory disease (PID). PID is a serious disease in women that can cause infertility and tubal (ectopic) pregnancy.
BV also can cause other problems such as premature delivery and low-birth-weight babies. Therefore, some health experts recommend that all pregnant women who previously have delivered a premature baby be checked for BV, whether or not they have symptoms. A pregnant woman who has not delivered a premature baby should be treated if she has symptoms and laboratory evidence of BV.
BV also is associated with increased chances of getting one or more STIs, including chlamydia, gonorrhea, or HIV infection.