Can a bacterial infection of the vagina cause burning/redness of whole vulva, anus, and urethra? Or is this more likely vulvodynia?

May be. If whole perineum with vagina and anus area invoke than this is serious infection leads to fasciitis , fournier gangrene, needs to be seen by surgeon .
Bacteria can . Bacteria, yeast, and viruses like herpes can all do this. With something so severe you definitly need to be seen by a doctor.

Related Questions

Being treated for bacterial infection of vagina. Vulva area is red, and burns. What can I safely use on area to soothe the skin?

Think diaper rash! If the vulva and perirectal area are this irritated, you might want to approach it like you would a diaper rash. For example, a&d ointment, zinc oxide, or dessitin are great "water-proofers." they may help protect the area while you have a chance to heal. Good luck. Lgromkomd. Read more...

Is it possible to have a bacterial infection on vulva/anal area and not inside the vagina?

Yes. It is possible to have this.Vulva and anal area can have infection involve abscess , boils or std's ( depends on exposure and risky behaviors ). Vaginitis or inside vaginal infection have different etiology . Read more...

Need referral for gyno or infectious disease dr in los angeles area who can cure complicated bacterial infection of vagina/vulva. Suffering 3 months.

As above . I am sorry about u suffering , i hope some physicians from california will read u message and provide u with what u want? if not ask u insurance company. Read more...
Gyn specialist. See a gyn specialist at a university clinic, such as ucla. At a large teaching center, there is usually a vulvar specialist in the obgyn dept. Read more...