Gestational Diabetes and Yeast Infections: Why It Happens (and What Helps)

If you’re dealing with a yeast infection during pregnancy and you have gestational diabetes, you’re not alone. And you’re not “dirty,” you didn’t do anything wrong, and you’re definitely not the only mama thinking: Is this because of my blood sugar?

Short answer: sometimes, yes. Higher blood sugar levels can create a friendlier environment for yeast growth (usually Candida albicans), and pregnancy itself comes with hormonal changes that can make many women more susceptible.

This post will walk you through why yeast infections can be more common with gestational diabetes, early signs to watch for, what treatment typically looks like in pregnancy, and gentle, practical ways to help prevent recurrent yeast infections.

Julija note: This is educational + supportive, not medical advice. Always follow your care team’s treatment plan.

Why yeast infections can be more common with gestational diabetes

A vaginal yeast infection is a type of fungal infection caused by yeast overgrowth. Yeast is normally present in the body in small amounts, but it can overgrow when the environment shifts.

In pregnancy, that “environment shift” can happen for a few reasons:

• Hormonal changes: Pregnancy hormones can change vaginal pH and the “right balance” of bacteria/yeast.

• More moisture + warmth: Increased discharge, sweating, and tight clothing can create a yeast-friendly setting.

• Blood sugar changes: With gestational diabetes, excess sugar in the body can contribute to yeast growth.

The blood sugar connection (in simple terms)

Yeast loves sugar. When blood sugar levels are higher (even temporarily), there can be more glucose available in tissues and secretions, which can support yeast overgrowth.

This doesn’t mean every high number causes an infection. But if you’re having frequent yeast infections or recurrent infections, it’s worth looking at the bigger picture:

• Are your blood sugar levels often above your target range?

• Are you noticing other “high blood sugar” signs like increased thirst, frequent urination, blurred vision, or feeling unusually hot/flushed?

• Did symptoms start around the time your numbers got harder to manage (often later in pregnancy as hormones ramp up)?

Yeast infection vs UTI in pregnancy (they can feel similar)

Yeast infections and urinary tract infections (UTIs) are both common in pregnant women, and both can happen more often when blood sugar is higher.

Here’s a simple difference:

• Yeast infection symptoms often include itching, irritation, redness, and thick discharge.

• UTI symptoms often include burning with urination, urgency, pelvic discomfort, and sometimes fever.

If you’re not sure which one it is, don’t guess—call your doctor. Treating the wrong thing can make symptoms drag on.

Early signs and symptoms of a yeast infection

Common symptoms include:

• Itching or burning around the vagina/vulva

• Redness, swelling, irritation

• Thick, white discharge (often described as “cottage cheese”)

• Pain with sex

• Burning when urine touches irritated skin (can feel like a UTI)

Julija note: If you have strong odor, green/gray discharge, fever, pelvic pain, or symptoms that don’t improve quickly, get checked—there are other infections (bacterial vaginosis, UTIs) that need different treatment.

What causes recurrent yeast infections in GD?

If you’re getting yeast infections repeatedly, it’s usually a combination of factors:

• Blood sugar not consistently in target range (even if you’re trying really hard)

• Antibiotics (they can disrupt vaginal health by changing bacteria balance)

• Moisture + friction (tight leggings, sweaty underwear, staying in a wet swimsuit)

• Stress + poor sleep (your immune system is doing a lot)

And sometimes it’s simply pregnancy being pregnancy.

Treatment: what’s typically safe in pregnancy

Always follow your provider’s guidance, but in general:

• Many clinicians recommend topical antifungal treatments (like azole creams/suppositories) during pregnancy.

• Oral antifungal medication may or may not be recommended depending on your situation.

Don’t self-treat repeatedly without checking

If this is your first yeast infection, or if symptoms keep coming back, it’s worth confirming the diagnosis. Not every itch is yeast.

What helps (practical, no-shame prevention tips)

You can’t “perfect” your way out of yeast infections, but these can help reduce risk and support vaginal health.

1) Keep blood sugar as steady as you realistically can

This is not about being perfect—it’s about reducing the amount of time you spend at high blood sugar levels.

• Build meals as carb + protein + fat + fiber (no naked carbs)

• Eat regularly (skipping meals can backfire)

• Add gentle movement if your care team says it’s okay (exercising regularly can help with disease control)

• If you’re seeing repeated highs, talk to your provider—sometimes medication/insulin is the right next step, and that’s not failure

2) Keep things dry and breathable

• Wear cotton underwear (or at least a cotton crotch)

• Change out of sweaty clothes quickly

• Don’t stay in a wet swimsuit

• Consider sleeping without underwear if that’s comfortable

3) Keep the vagina clean (but don’t over-clean)

• Wash the outside with water (or a gentle, fragrance-free cleanser)

• Avoid douching or scented products—these can disrupt the right balance

4) Be mindful with “extra sugar” and refined carbs

You don’t need to cut all carbs (you and baby need carbs), but if you’re dealing with recurrent yeast infections, it can help to:

• Reduce big sugar hits (soda, juice, candy)

• Pair carbs with protein/fat

• Choose carbs you tolerate well

5) If you’re prone to recurrent infections, ask about a plan

If you’ve had recurrent yeast infections, it’s okay to ask your doctor:

• Should we confirm with a swab/culture?

• Could this be BV or something else?

• Do I need a longer treatment plan?

• Are there signs of high blood sugar that suggest we should adjust my GD management?

When to call your doctor (please don’t wait)

Call your provider if:

• It’s your first yeast infection in pregnancy

• Symptoms are severe or you’re very uncomfortable

• Symptoms don’t improve after treatment

• You have fever, pelvic pain, bleeding, or strong odor

• You’re having frequent yeast infections or recurrent infections

Does having yeast infections mean my GD is “bad”?

No. Yeast infections can happen even with well-managed gestational diabetes, because pregnancy hormones alone can increase risk.

But if you’re having frequent yeast infections, it can be a helpful nudge to review:

• your blood sugar trends (especially if you’re often above target range)

• hydration

• sleep/stress

• whether you need more support with your treatment plan

Julija note: You deserve comfort. You deserve care. And you don’t have to white-knuckle your way through pregnancy symptoms alone.

FAQ: Gestational Diabetes & Yeast Infections

1. Can gestational diabetes cause yeast infections?

Gestational diabetes can increase the risk of yeast infections because higher blood sugar levels can support yeast growth. Pregnancy hormonal changes also make many women more susceptible.

2. What are the early signs of a yeast infection in pregnancy?

Common early signs include itching, burning, redness/irritation, and thick white discharge. Burning with urination can happen if the skin is irritated.

3. How do I know if it's a yeast infection or a UTI?

Yeast infections usually cause itching/irritation and discharge. UTIs more often cause burning with urination, urgency, pelvic discomfort, and sometimes fever. If you're unsure, call your doctor for testing.

4. Are yeast infections dangerous for the baby?

Most yeast infections are treatable and not dangerous when managed appropriately, but you should still contact your provider for diagnosis and treatment during pregnancy.

5. What's the safest treatment for a yeast infection during pregnancy?

Many providers recommend topical antifungal treatments during pregnancy. Always follow your care team's guidance, especially if symptoms are recurrent or severe.

6. Why do yeast infections keep coming back with gestational diabetes?

Recurrent yeast infections can be linked to a mix of factors: blood sugar levels spending more time high, hormonal changes, antibiotics, moisture/friction, and stress/sleep disruption.

7. Can lowering blood sugar help prevent yeast infections?

Keeping blood sugar closer to your target range may reduce yeast overgrowth risk for some people. If you're seeing repeated highs, talk to your provider about adjusting your treatment plan.

8. What can I do at home to help prevent yeast infections?

Wear cotton underwear, change out of sweaty/wet clothes quickly, avoid scented products, keep the area dry, and support steady blood sugar with balanced meals and regular eating.

9. Can yeast infections be a sign that my blood sugar is too high?

Sometimes. A yeast infection can occur even when your numbers are well-managed, but frequent yeast infections can be a clue that blood sugar levels are spending more time high than your body likes. If you're seeing recurrent infections, it's worth reviewing your trends with your provider.

10. Does gestational diabetes increase the risk of other infections too?

It can. Some pregnant women with higher blood sugar levels are at higher risk for urinary tract infections (UTIs) and other recurrent infections. If you're getting frequent infections, talk to your doctor.

11. Can yeast infections affect giving birth or the baby?

In some cases, yeast can be passed to the baby during vaginal delivery, which may lead to oral thrush or diaper rash. This is one reason providers often prefer treating yeast infections before delivery.