The most common vaginal infection nobody talks about
Bacterial vaginosis, or BV, is the most common vaginal infection in women of reproductive age in the U.S., with prevalence estimates ranging from roughly 21 to 29 percent depending on the population studied. It is more common than yeast infections. It is more common than trichomoniasis. And yet it is one of the most underdiscussed vaginal health topics in mainstream wellness coverage.
This piece walks through what BV actually is, why it has such a high recurrence rate, what current treatment looks like, and where telehealth fits into the picture.
What is actually happening in the vaginal microbiome
A healthy vaginal microbiome is dominated by Lactobacillus species, which produce lactic acid and keep the vaginal pH in a slightly acidic range. That acidity is part of what protects against pathogens. BV happens when that Lactobacillus-dominant balance is disrupted and other bacteria, particularly Gardnerella vaginalis, Atopobium vaginae, and several anaerobes, expand to fill the gap.
The result is a shift in pH, often a thin gray-white discharge, and a fishy odor that tends to be more noticeable after sex or during menstruation. Some women experience irritation or burning, but a meaningful share have no symptoms at all and only learn they have BV during a routine exam.
It is worth noting what BV is not. It is not a sexually transmitted infection in the traditional sense, though sexual activity is a recognized risk factor. It is not caused by poor hygiene. Aggressive douching, in fact, is a common contributor to BV by disrupting the normal microbiome. It is also not the same as a yeast infection, even though the symptoms can feel similar. Treating BV with an over-the-counter antifungal will not work, and is part of why some women cycle through misdiagnoses before getting effective care.
Why BV comes back so often
Recurrence is the defining frustration of BV. Roughly half of women who clear BV with first-line antibiotic treatment will have another episode within 12 months. That recurrence rate is one of the highest in any common bacterial infection.
A few mechanisms are believed to contribute. Biofilm formation by Gardnerella protects the bacteria from antibiotics and allows the population to rebound after treatment ends. The Lactobacillus species that should be dominant after treatment do not always re-establish themselves quickly enough to keep other bacteria in check. Sexual partners can reintroduce bacteria that contribute to recurrence, particularly in same-sex couples where transmission appears to be more efficient. And lifestyle factors including douching, scented intimate products, and certain hormonal shifts can keep recreating the conditions BV thrives in.
For women in a recurrent BV cycle, the treatment path often expands beyond a single antibiotic course. Some clinicians prescribe extended or maintenance therapy. Some integrate vaginal probiotics, which have a growing evidence base. Some address contributing factors like douching practices. The right path depends on individual history, which is why ongoing care relationships matter.
What treatment actually looks like
Standard first-line treatment for BV in the U.S. is metronidazole, taken either orally or as a vaginal gel, or clindamycin, used as a vaginal cream. Treatment courses typically run 5 to 7 days. Most uncomplicated cases clear with a single course, though as noted, recurrence rates remain high.
Newer options including secnidazole, a single-dose oral antibiotic, have made treatment more convenient for some patients. The clinical decision about which medication to use depends on patient history, pregnancy status, drug allergies, and previous response to treatment.
Importantly, the diagnostic process itself is straightforward in most cases. A clinician can often identify likely BV based on symptom history, particularly when classic features are present. Confirmatory testing, including pH testing, microscopy, or molecular panels, is used when the picture is ambiguous or when recurrence is part of the presentation.
Where telehealth fits in
Because BV is well-studied, its symptom presentation is recognizable, and its first-line treatment is standardized, it has become one of the most efficient conditions to manage through telehealth. A virtual visit can move a patient from “something is wrong” to a prescription at a local pharmacy in under an hour, which compares favorably to the multi-day wait many women face for an in-person appointment.
Platforms that offer bv treatment online, such as Galileo, give patients 24/7 access to licensed clinicians by phone, video, or secure chat, and when treatment is appropriate the clinician can send antibiotics directly to the patient’s preferred pharmacy. Many employer and insurance plans cover the visit, with self-pay pricing shown up front for those who do not have coverage. For recurrent cases, follow-up care including refills and longer-term management can be coordinated through the same platform.
Telehealth is not appropriate for every situation. A clinician may recommend an in-person evaluation when symptoms are severe, when there is a history of pelvic pain, or when there is concern for another condition that requires physical examination or laboratory testing. The strength of telehealth for BV is that it handles the large middle of cases efficiently while preserving a clear path for the cases that need more.
What to take away
BV is common, treatable, and often recurrent. The most important things to understand are that it is a microbiome imbalance rather than a hygiene failure, that it requires antibiotic treatment rather than antifungals, and that recurrence is common enough that ongoing care matters. For women dealing with a current episode or a history of recurrence, knowing both the in-person and the telehealth pathways means you can choose the route that makes the most sense for your situation.
FAQs
What is bacterial vaginosis (BV)?
Bacterial vaginosis is a common vaginal condition caused by an imbalance in the vaginal microbiome. It happens when protective Lactobacillus bacteria decrease and other bacteria overgrow, leading to symptoms such as odor, discharge, or irritation.
Why does BV keep coming back?
BV has a high recurrence rate because certain bacteria can form protective biofilms, making them harder to eliminate completely. Hormonal changes, douching, microbiome imbalance, and some sexual activity patterns may also contribute to repeated infections.
Can BV be treated with over-the-counter yeast infection medicine?
No. BV is not the same as a yeast infection, so antifungal treatments will not clear it. BV usually requires prescription antibiotics such as metronidazole or clindamycin.
Is telehealth a good option for BV treatment?
Telehealth can be an effective option for many uncomplicated BV cases. Licensed clinicians can evaluate symptoms remotely and prescribe treatment when appropriate, often without requiring an in-person visit.
When should someone seek in-person care for BV symptoms?
An in-person evaluation may be recommended if symptoms are severe, recurring frequently, accompanied by pelvic pain or fever, or if another condition may be causing similar symptoms.