Why Do I Keep Getting Yeast Infections?

Three or more symptomatic yeast infections in less than a year are considered recurrent. Repeated infections warrant clinical evaluation and testing and may require a longer treatment plan. This pattern is called recurrent vulvovaginal candidiasis, or RVVC. Repeated itching or discharge does not prove that every episode was yeast. Finding the cause matters before continuing the same treatment.

What "Recurrent" Actually Means

The CDC's STI Treatment Guidelines use three or more symptomatic episodes in less than one year to describe recurrent VVC. Your clinician may recommend culture or another test to confirm the cause of repeated symptoms. In a study of women purchasing OTC yeast medication, only 34 percent had vulvovaginal candidiasis. That finding illustrates the limits of self-diagnosis, not a rule excluding first suspected episodes from online assessment.

Reason 1: It Isn't Actually Yeast

Repeated symptoms may reflect yeast, a different diagnosis or more than one condition. Conditions that can mimic yeast include:

• Bacterial vaginosis (BV) — thin, fishy-smelling discharge; treated with metronidazole, not antifungals. See our yeast vs BV guide.
• Trichomoniasis — a sexually transmitted parasite; frothy discharge and itching
• Contact dermatitis — reactions to soaps, detergents, panty liners, or even the preservatives in OTC yeast creams
• Lichen sclerosus — a chronic skin condition that causes itching and white patches on the vulva
• Atrophic vaginitis — estrogen deficiency changes that cause irritation, especially after menopause or while breastfeeding

Repeated symptoms warrant a confirmed diagnosis rather than repeated guesses. Your clinician can recommend microscopy, a vaginal culture or an appropriate PCR test. A clinical assessment can begin online, but laboratory confirmation requires a sample.

Reason 2: You Have True Recurrence — Now What's Driving It?

If cultures or PCR have repeatedly confirmed Candida, the next question is why your vaginal ecosystem keeps letting the yeast bloom. The evidence points to several consistent drivers.

Non-albicans Candida species

About 90 percent of typical yeast infections are caused by Candida albicans. But roughly 10 to 15 percent of recurrent cases are caused by non-albicans species — most commonly C. glabrata. These species are often resistant to standard fluconazole, which is why repeated doses don't work. Treatment depends on the yeast species, test results and response to earlier treatment. Boric acid is reserved for selected cases after clinician evaluation; follow your clinician's prescribed regimen.

Undiagnosed or poorly controlled diabetes

A clinician may consider glucose testing when the history suggests diabetes or poor glucose control. Many people with recurrent yeast have no identifiable underlying condition; the workup should fit the individual.

Recent or frequent antibiotic use

Antibiotic exposure can increase the chance of yeast symptoms in some people. Yeast infections can still occur at a normal vaginal pH, and recurrent symptoms need assessment rather than an assumption that antibiotics or pH explain every episode.

Hormonal factors

Estrogen increases vaginal glycogen, which Candida feeds on. Higher-dose combined oral contraceptives, pregnancy, and hormone replacement therapy can all predispose you to recurrence. The luteal phase of the menstrual cycle (the week before your period) is also a common trigger window.

Immune factors

HIV, chemotherapy, long-term systemic corticosteroids, and rare conditions like chronic mucocutaneous candidiasis all predispose to recurrence. Most women with RVVC have normal immune function, but a full review is warranted if other unusual infections are occurring.

Your partner — sometimes

Routine partner treatment has not been shown to prevent recurrent yeast infections. If a partner has itching, soreness, balanitis or other genital symptoms, they should be assessed and treated for their own condition when appropriate. This is different from the newer evidence for concurrent partner treatment in BV.

What Actually Works: The Evidence

The CDC-recommended induction-plus-maintenance protocol

Standard of care for RVVC remains what a landmark 2004 NEJM trial established and the CDC endorses:

• Induction: fluconazole 150 mg orally every 72 hours for 3 doses (days 1, 4, and 7)
• Maintenance: fluconazole 150 mg orally once weekly for 6 months

In the 2004 NEJM trial, 90.8% of the fluconazole group remained disease-free at the end of six months of maintenance, compared with 35.9% on placebo. At month 12, which was six months after maintenance ended, the figures were 42.9% and 21.9%. Maintenance can control recurrence, but it does not guarantee a permanent cure. Read the original trial.

Newer option: oteseconazole (Vivjoa)

Oteseconazole (VIVJOA) is an FDA-approved option to reduce recurrent yeast infections in females who are not of reproductive potential. It is contraindicated in females of reproductive potential and in pregnancy or lactation. The VIOLET trials, published in NEJM Evidence in 2022, found fewer recurrences through 48 weeks than placebo. This requires an individual prescribing assessment; it is not a general self-treatment option or a statement that Bidwell offers it. Prescribing information; VIOLET trials.

Boric acid for resistant or non-albicans species

Boric acid is reserved for selected cases after clinician evaluation; follow your clinician's prescribed regimen. Recurrent symptoms may require testing to identify the yeast species and guide treatment. Boric acid is for vaginal use only, must never be swallowed and is not appropriate during pregnancy.

Probiotics — mixed evidence

Probiotics are being studied, but dependable prevention of recurrent yeast infections has not been established. Some small studies suggest short-term benefits when added to antifungal treatment; the evidence is limited and does not establish a lasting benefit. They should not replace testing or a clinician-directed treatment plan, and “natural” does not mean suitable for everyone. Cochrane evidence review.

What Doesn't Work (Despite What the Internet Says)

• Yogurt applied vaginally — food-grade yogurt contains the wrong Lactobacillus strains and unwanted sugars
• Tea tree oil and essential oils — frequent cause of contact dermatitis that mimics yeast and perpetuates the cycle
• Douching — disrupts the microbiome and actually increases recurrence
• Drastic sugar-elimination diets — no good evidence unless you have diabetes
• Repeated OTC antifungal courses without assessment: persistent symptoms after treatment or recurrence within two months need clinical evaluation and testing.

When to Escalate

See a clinician — ideally one who can order vaginal cultures or PCR and screen for underlying drivers — if any of the following apply:

• Three or more symptomatic yeast infections in less than a year
• Symptoms that don't resolve fully within 7 to 14 days of proper antifungal treatment
• Bleeding, ulceration, or persistent white patches on the vulva
• Repeated symptoms that have never had a confirmed diagnosis
• You're pregnant, diabetic, or immunocompromised

Recurrent infections are considered individually by your clinician. Depending on your history and symptoms, testing, an in-person evaluation or a longer treatment plan may be recommended. A Bidwell online assessment does not include an examination or vaginal testing; your clinician will explain when those are needed.

Related reading on Bidwell:

• Yeast infections: separating myth from science
• How long does fluconazole take to work?
• Yeast infection or BV? How to tell the difference