Bacterial Vaginosis (BV) is not classified as a sexually transmitted infection—but it can still be linked to sexual activity. So… is it contagious? Let’s dig in.
What Even Is BV?
BV is caused by an imbalance in the vagina’s natural bacteria. When the “good” bacteria (lactobacilli) get outnumbered by “bad” bacteria (anaerobes), BV takes over. The result? Fishy odor, grayish discharge, and irritation.
Can You Give BV to a Partner?
While it’s not technically “contagious,” studies show that BV can be shared between partners—especially between women or anyone with vulvas. Some male partners may also harbor bacteria that increase your risk of BV coming back.
What Makes BV Flare?
– New or multiple partners
– Unprotected sex
– Sharing sex toys without cleaning them
– Douching or using scented products
Prevention Tips
– Use condoms or barrier methods
– Clean toys with antibacterial wash between uses
– Avoid douches, sprays, or scented tampons
– Take a daily vaginal probiotic (like Garden of Life or Love Wellness)
OTC & Prescription Relief
– Boric acid suppositories: For recurring BV (check with your doc)
– pH balancing gels: Like RepHresh
– Prescription treatments: Metronidazole or clindamycin
⚠️ Important Note: Do not drink alcohol while taking metronidazole (Flagyl)—it can make you seriously sick.
TL;DR:
BV isn’t technically contagious, but sex *can* play a major role in recurring infections. Protect your flora, keep it clean, and talk to your partner if you keep getting it.
*Sources: Mayo Clinic, CDC, NIH*