Bacterial vaginosis sometimes clears on its own. Often it doesn’t. And when it sticks around untreated, the risks aren’t only about discomfort.
Here’s what BV can do when ignored, when the body needs help, and when to call a doctor.
What BV is
Bacterial vaginosis is a shift in the normal mix of bacteria in the vagina. The protective lactobacilli drop off. Other bacteria overgrow. You may notice a thin gray or white discharge, sometimes with a fishy odor that gets stronger after sex.
One thing worth knowing upfront: BV is not an STI. It’s a bacterial imbalance. You can get it without ever being sexually active, though sex can trigger or worsen it. It’s also common. Roughly 1 in 5 women of reproductive age in the US have it at any given time, according to CDC estimates.
Not directly. BV itself doesn’t cause infertility, but it can contribute to conditions that do. When BV bacteria travel upward into the reproductive organs, the resulting pelvic inflammatory disease can scar the fallopian tubes and affect fertility over time. That’s not a common outcome, and it’s not guaranteed, but it’s one of the reasons letting BV go untreated for an extended period isn’t a great idea. Catching and treating it early avoids that risk entirely.
Recurrence is one of the most frustrating things about BV. You finish a round of antibiotics, symptoms clear, and a few months later, it’s back. That’s not uncommon. The antibiotics treat the overgrowth, but they don’t always restore the long-term bacterial balance that keeps BV from returning. Things like sex (especially with a new or untreated partner), douching, scented products, hormonal shifts, and even your menstrual cycle can all re-tip the balance. If you’re dealing with recurrent BV, that’s worth a real conversation with your clinician. There are suppressive treatment approaches that may help.
Can BV Go Away on Its Own?
Sometimes. Some mild cases resolve without treatment. But that’s not something you can count on, and even when symptoms fade, the underlying imbalance often returns. Recurrence within a year is common.
So if you’ve been hoping it’ll work itself out on its own, the odds aren’t great.
What Untreated BV can do
Most of the short-term consequences are about quality of life. Persistent odor. Discharge that ruins underwear. Discomfort during sex. Itching that won’t quit. These aren’t dangerous on their own, but they’re miserable, and they don’t tend to improve with time.
The longer-term picture matters more.
Higher Risk of STIs
Untreated BV changes the vaginal environment in ways that make it easier for STIs to take hold. Research has linked BV to higher rates of HIV, gonorrhea, chlamydia, herpes, and trichomoniasis.
If you’re sexually active and have unaddressed BV, you’re at higher baseline risk of catching something that could have been blocked.
Pelvic Inflammatory Disease (PID)
In some cases, bacteria associated with BV can travel upward into the uterus, fallopian tubes, and ovaries. That’s pelvic inflammatory disease. PID is serious. It can cause chronic pelvic pain, scar the fallopian tubes, and affect fertility down the line. The evidence linking BV to PID is real, though BV is one of several contributing factors rather than a direct cause.
This isn’t something that happens to everyone. But it’s not rare enough to ignore.
Pregnancy Complications
If you’re pregnant or trying to be, this section matters most. Untreated BV during pregnancy has been linked to:
- Preterm birth (before 37 weeks)
- Low birth weight
- Premature rupture of membranes
- Higher rates of postpartum infection
For pregnant patients, screening and treatment for BV is part of good prenatal care.
Post-Procedure Infection Risk
Untreated BV before a gynecologic procedure (IUD insertion, hysterectomy, certain biopsies) raises the risk of pelvic infection afterward. That’s why some clinicians screen for BV before scheduling.
When to See a Doctor
Don’t tough this out. Reach out to a doctor if:
- You notice a fishy odor, unusual discharge, or vaginal discomfort
- Symptoms have lasted more than a few days
- BV keeps coming back (recurrence after treatment is common and worth a real conversation)
- You’re pregnant or trying to conceive
- You’re scheduled for a gynecologic procedure
- Symptoms get worse instead of better
How ChatRx Fits
If you’re in Indiana, Illinois, or Michigan, ChatRx treats bacterial vaginosis as one of our 39 acute conditions. The visit is chat-based, doctor-reviewed, and $25 flat. Prescription antibiotics (typically metronidazole or clindamycin) go straight to your pharmacy.
No waiting room or awkward in-person visit. No scheduling. Most patients have a prescription within 15 minutes if treatment is needed. Here’s how it works.
The free symptom checker is open to anyone, anywhere, no account required.
Don’t Wait Until You’re Miserable
Most people find ChatRx when they’re already dealing with symptoms. That works fine. But setting up your account before you start feeling off takes about 2 minutes, and it means that when you do need care, you can get treated quicker.
Create your free account right now. No visit required. Just ready when you are.
Quick Take
BV is common. It isn’t your fault. But it doesn’t always clear on its own, and the longer it goes untreated, the more it can do. Symptoms lasting more than a few days, BV that keeps coming back, pregnancy, or upcoming procedures are all reasons to get checked. Treatment is short, simple, and works.
Don’t sit on it. Get it handled.
This information is provided for educational purposes only and is not intended to replace professional medical advice, diagnosis, or treatment through ChatRx. If you have questions about a medical condition, talk with a qualified healthcare provider. Services like ChatRx can help connect you with licensed physicians.
