Green Discharge During Pregnancy: Causes, Risks & Your Essential Next Steps

Noticing green discharge during pregnancy can be alarming. It's completely normal to pay close attention to any changes in your body while you're expecting. While some vaginal discharge is healthy and expected in pregnancy, green discharge is not considered normal and should be checked by a healthcare professional.

The good news? Most causes are treatable, especially when caught early. Here's what you need to know.

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Is Vaginal Discharge Normal During Pregnancy?

Yes. In fact, it usually increases.

During pregnancy, your body produces more vaginal discharge (called leukorrhea) due to rising estrogen levels and increased blood flow to the pelvic area. Normal discharge is typically:

• Clear or milky white
• Thin or slightly creamy
• Mild or odorless

This discharge helps protect the birth canal from infection. However, green discharge during pregnancy is not typical and often signals an underlying issue that needs medical attention.

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What Does Green Discharge During Pregnancy Mean?

Green discharge most often points to an infection. The color usually indicates the presence of white blood cells fighting bacteria or other organisms.

It may appear:

• Yellow-green or bright green
• Thick or frothy
• Foul-smelling
• Accompanied by itching, burning, or irritation

Sometimes there are additional symptoms like pelvic discomfort, pain with urination, or pain during sex.

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Common Causes of Green Discharge During Pregnancy

1. Trichomoniasis

One of the most common causes of green discharge during pregnancy is trichomoniasis, a sexually transmitted infection (STI).

Typical signs include:

• Green, yellow, or frothy discharge
• Strong, unpleasant odor
• Vaginal itching or irritation
• Discomfort during urination

Trichomoniasis is treatable with prescription medication that is considered safe during pregnancy. Early treatment reduces potential pregnancy complications.

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2. Bacterial Vaginosis (BV)

Bacterial vaginosis occurs when there's an imbalance of normal vaginal bacteria. It's not always sexually transmitted, but sexual activity can increase risk.

Symptoms may include:

• Thin gray, white, or greenish discharge
• Fishy odor (especially after sex)
• Mild irritation

BV during pregnancy has been associated with an increased risk of:

• Preterm birth
• Low birth weight
• Premature rupture of membranes

Treatment with antibiotics is typically safe and effective.

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3. Gonorrhea or Chlamydia

These STIs can sometimes cause green or yellow discharge.

Other possible symptoms:

• Pelvic pain
• Burning during urination
• Bleeding between periods (less common in pregnancy but possible)

Untreated infections may increase the risk of:

• Preterm labor
• Infection of the amniotic sac
• Eye infections in the newborn

Routine prenatal screening often checks for these infections, but if symptoms appear later, additional testing may be needed.

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4. Yeast Infection (Less Commonly Green)

Yeast infections are very common during pregnancy but typically cause thick white discharge. However, if mixed with other infections, the discharge color may change.

Yeast infection symptoms include:

• Intense itching
• Redness and swelling
• Thick, cottage cheese-like discharge

Yeast infections are uncomfortable but generally not dangerous when properly treated.

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Is Green Discharge During Pregnancy Dangerous?

It can be — depending on the cause.

Infections during pregnancy matter because they may:

• Spread to the uterus
• Increase the risk of preterm birth
• Affect the baby during delivery
• Cause newborn infections

However, most infections linked to green discharge during pregnancy are treatable. The key is not ignoring symptoms.

Prompt care significantly lowers the risk of complications.

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When Should You Call a Doctor?

Contact your healthcare provider promptly if you notice:

• Green, yellow-green, or gray discharge
• Foul or fishy odor
• Vaginal itching or burning
• Pain during urination
• Pelvic or abdominal pain
• Fever
• Contractions or leaking fluid

If you experience fever, severe abdominal pain, or signs of preterm labor, seek urgent medical care immediately.

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What to Expect at the Doctor's Office

Try not to feel embarrassed — vaginal infections are extremely common, especially during pregnancy.

Your provider may:

• Ask about symptoms and sexual history
• Perform a pelvic exam
• Take a swab of vaginal discharge
• Order lab testing

Results may be available quickly, and treatment usually begins right away if infection is suspected.

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Can You Treat Green Discharge at Home?

No.

Because green discharge during pregnancy is usually caused by infection, it requires prescription medication. Over-the-counter treatments may not work and could delay proper care.

Avoid:

• Douching
• Using scented soaps or sprays
• Self-diagnosing with leftover medications

These can worsen irritation or disrupt healthy bacteria.

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How Is It Treated?

Treatment depends on the cause:

• Trichomoniasis: Oral antibiotics
• Bacterial vaginosis: Oral or vaginal antibiotics
• Gonorrhea/Chlamydia: Targeted antibiotics
• Yeast infection: Antifungal medication (if confirmed)

It's essential to:

• Complete the full course of medication
• Avoid sexual activity if advised
• Ensure your partner is treated if required

Follow-up testing may be recommended.

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Can Green Discharge Be Prevented?

You can reduce risk by:

• Attending all prenatal appointments
• Getting screened for STIs
• Using protection with new or multiple partners
• Avoiding douching
• Wearing breathable cotton underwear
• Changing out of wet clothing promptly

Even with precautions, infections can still happen. Pregnancy changes your vaginal environment, making infections more likely.

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Should You Worry?

It's natural to feel concerned — but panic won't help.

Instead:

• Recognize that green discharge during pregnancy is not typical
• Understand that infections are common
• Know that treatment is usually straightforward
• Act promptly

Early medical care dramatically improves outcomes for both you and your baby.

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Not Sure What Your Symptoms Mean?

If you're noticing unusual discharge with an unpleasant odor, using a free AI-powered foul-smelling vaginal discharge symptom checker can help you understand what might be happening and prepare questions for your healthcare provider.

This is not a replacement for medical care, but it can help you prepare for the conversation.

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The Bottom Line

Green discharge during pregnancy is not normal, but it is usually treatable. The most common causes are infections such as:

• Trichomoniasis
• Bacterial vaginosis
• Gonorrhea
• Chlamydia

Left untreated, some infections can increase the risk of complications, including preterm birth. Fortunately, early diagnosis and proper treatment are highly effective.

If you notice green discharge — especially if it's accompanied by odor, itching, pain, or fever — speak to a doctor promptly. Anything potentially serious or life-threatening should always be evaluated by a medical professional without delay.

Pregnancy brings many changes. Trust your instincts, stay informed, and never hesitate to seek care when something feels off.