Vaginal itching, unusual discharge, and irritation are common reasons women seek medical care. Two of the most frequent causes are yeast infections and bacterial vaginosis (BV).
Because both can cause vaginal discomfort, it’s easy to assume they’re the same. In reality, they’re caused by different problems and require different treatments. Knowing the differences can help you understand what’s happening — but symptoms often overlap, so if you’re unsure which condition you have, a healthcare provider can help determine the most likely cause and recommend appropriate treatment.
What Is a Yeast Infection?
A yeast infection occurs when a fungus called Candida — which normally lives in the vagina in small amounts — grows excessively, disrupting the normal balance and leading to inflammation. Yeast infections are common and affect many women at least once during their lifetime.
What Is Bacterial Vaginosis?
Bacterial vaginosis develops when the normal balance of vaginal bacteria changes: instead of protective bacteria dominating, other bacteria overgrow. BV is the most common cause of abnormal vaginal discharge in women of reproductive age. Unlike a yeast infection, BV is not caused by a fungus.
Side-by-Side Comparison
| Symptom | Yeast Infection | Bacterial Vaginosis |
|---|---|---|
| Itching | Very common | Mild or absent |
| Burning | Common | Sometimes |
| Discharge | Thick, white, clumpy | Thin, gray or white |
| Odor | Usually none | Fishy odor is common |
| Redness | Common | Usually mild |
| Pain during sex | Possible | Possible |
While this comparison can help, symptoms alone aren’t always enough to make a diagnosis. Some women with BV have no symptoms at all, and its fishy odor is often more noticeable after sex.
What Causes Each?
Yeast infection risk rises with recent antibiotic use, pregnancy, poorly controlled diabetes, a weakened immune system, hormonal changes, and some high-estrogen birth control methods. Bacterial vaginosis risk rises with a new or multiple sexual partners, douching, and smoking. BV is associated with sexual activity but isn’t considered a classic sexually transmitted infection.
Can You Treat Them the Same Way?
No — and this is the biggest reason it matters which one you have. Yeast infections are treated with antifungal medications (vaginal creams, suppositories, or prescription oral antifungals). Bacterial vaginosis is treated with antibiotics (oral medication, vaginal gel, or cream). Antifungal medications won’t cure BV, and antibiotics for BV won’t treat a yeast infection.
Could It Be Something Else?
Yes. Similar symptoms can occur with sexually transmitted infections, urinary tract infections, allergic reactions to soaps or personal-care products, vulvar skin conditions, menopause-related changes, and trichomoniasis. If symptoms are severe, recurrent, or don’t improve with treatment, further evaluation is important.
Can These Infections Keep Coming Back?
Unfortunately, yes — some women experience recurrent yeast infections or repeated episodes of BV. If symptoms keep returning, your provider may recommend additional testing or a longer treatment plan to reduce recurrences. Healthy habits may help: avoid douching, wear breathable cotton underwear, change out of wet swimsuits promptly, manage diabetes, take antibiotics only when necessary, and avoid scented vaginal products unless recommended.
Frequently Asked Questions
Can BV turn into a yeast infection?
Not directly. However, antibiotics used to treat BV can sometimes disrupt normal vaginal flora and increase the risk of a yeast infection afterward.
Does every yeast infection have thick discharge?
No. Although thick white discharge is common, some women mainly experience itching and irritation.
Is bacterial vaginosis contagious?
BV isn’t considered a traditional STI, but sexual activity can influence the balance of vaginal bacteria.
Can telehealth treat yeast infections and BV?
Yes. Many uncomplicated cases can be evaluated through a virtual visit, and prescription medications can often be provided when appropriate.
How YourMD Telehealth Can Help
Vaginal symptoms are common, but the right treatment depends on the cause — an accurate diagnosis helps you recover faster and avoid unnecessary medications. With YourMD Telehealth, Nevada residents can have symptoms evaluated through a secure virtual visit: secure messaging ($20), live chat ($20), phone ($40), or video ($50). A board-certified physician can determine whether a yeast infection or BV is more likely, prescribe medication when appropriate, recommend testing if the diagnosis is uncertain, and advise whether an in-person examination is needed.
References
- Centers for Disease Control and Prevention. Sexually Transmitted Infections Treatment Guidelines, 2021 (Vulvovaginal Candidiasis; Bacterial Vaginosis).
- American College of Obstetricians and Gynecologists. Vaginitis in Nonpregnant Patients.
- Sobel JD. Vulvovaginal candidosis / Bacterial vaginosis. Lancet / Annual Review of Medicine.
- Workowski KA, Bachmann LH, et al. CDC STI Treatment Guidelines, 2021.
This article is for general educational purposes and is not a substitute for individualized medical advice. Prescriptions are provided only when a physician determines treatment is clinically appropriate. Services currently available to Nevada residents 18 and older.