Why Is My Discharge Greenish?

Noticing strange changes in your vaginal discharge can be worrying, especially if you spot an unusual color like green. While it’s easy to jump to conclusions, there are various reasons why this could be happening. Let's break it down.

Key takeaways

• Green vaginal discharge isn’t normal and is usually a sign of an infection that needs attention.
• The most common causes are trichomoniasis, bacterial vaginosis (BV), gonorrhea, and pelvic inflammatory disease (PID), all of which are treatable with the right care.
• Green discharge doesn't always mean you have a sexually transmitted infection (STI); BV and other non-sexually transmitted infections can also produce a greenish or grey-tinged discharge.
• Other symptoms to watch for include a fishy or foul odor, itching, burning, pelvic pain, or discomfort when you pee or have sex.
• Because the causes overlap in symptoms, testing is the only way to know for sure what's going on. Evvy's Vaginal Microbiome Test can help identify the underlying cause so you get the right treatment.

What is vaginal discharge?

Vaginal discharge is a natural part of your body's process to keep the vagina clean and healthy. Discharge consists of fluid and cells shed from the vaginal lining, helping to clear away old cells and prevent infections. Vaginal discharge changes in color, consistency, and volume based on factors like your menstrual cycle, age, and hormonal changes.

Healthy vs abnormal vaginal discharge

Normal vaginal discharge typically ranges from clear to white or light yellow. The texture can also change depending on where you are in your cycle — it might be thin and watery at one point and thicker or more mucus-like at another. Slight variations in odor are normal, but a strong, fishy, or foul odor often indicates something is off.

However, when your discharge takes on unusual characteristics (like a greenish hue), it’s often a sign that something needs attention. Green discharge isn’t typical and is usually a sign of infection that may need treatment.

Why is my discharge greenish?

Green discharge can be alarming, but it's often linked to a specific cause. Here are the most common reasons why your discharge may be greenish:

Trichomoniasis

Trichomoniasis is an STI caused by a parasite called Trichomonas vaginalis. One of the main symptoms of this infection is green or yellowish frothy vaginal discharge, often accompanied by an unpleasant odor. Other signs may include: 

• Itching
• Burning
• Discomfort when you pee or have sex.

Trichomoniasis is typically treated with prescription antibiotics, such as metronidazole or tinidazole. Both partners should be treated to prevent reinfection, even if only one is experiencing symptoms.

Bacterial vaginosis 

While BV more commonly causes white or gray vaginal discharge, some women may notice a greenish tint. Bacterial vaginosis is a vaginal infection that occurs when there’s an imbalance in the bacteria that naturally live in the vagina, allowing harmful bacteria to overgrow. This imbalance may lead to a fishy smell along with changes in vaginal discharge. Bacterial vaginosis is often treated with oral or topical antibiotics.

Gonorrhea

Gonorrhea, another sexually transmitted infection, can also cause greenish or yellow discharge, along with pelvic pain, bleeding between periods, and a burning sensation when you pee. Many women may not experience symptoms at all, which is why regular STI testing is important.

Gonorrhea is also treated with antibiotics. Like trichomoniasis, both partners need to be treated to avoid passing the infection back and forth.

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Chlamydia

Chlamydia is one of the most common STIs, and while it's often called a "silent" infection because many people have no symptoms at all, it can sometimes cause changes in vaginal discharge. 

In some cases, chlamydia may produce a yellow or yellow-greenish discharge that is heavier than usual, sometimes with an unusual odor. This happens because the infection triggers inflammation in the cervix (cervicitis), which can alter both the color and consistency of discharge.

Because chlamydia so frequently causes no noticeable symptoms, it's easy to go undiagnosed and untreated, which can lead to serious complications over time, including PID. If you notice any changes in your discharge alongside pelvic pain, bleeding between periods, or a burning sensation when you pee, getting tested is the important first step.

Pelvic inflammatory disease 

Pelvic inflammatory disease is a complication of untreated STIs like gonorrhea or chlamydia. It can cause green discharge along with more severe symptoms such as pelvic pain, fever, and heavy or irregular periods. PID requires immediate medical attention, as it can lead to long-term health issues like infertility if left untreated. 

Antibiotics are the standard treatment for PID, but early intervention is key to preventing further complications.

Foreign objects

It might sound odd, but sometimes a forgotten tampon or contraceptive device left in the vagina can cause infection, leading to a green discharge. In these cases, the discharge is usually accompanied by a strong, unpleasant odor and discomfort.

If you suspect a foreign object is the cause, remove it (if safe) and see a doctor. You may need antibiotics if an infection has developed.

Green discharge during pregnancy

During pregnancy, it's completely normal to notice more vaginal discharge than usual. This is called leukorrhea, a thin, white or clear, mild-smelling discharge that increases as pregnancy progresses due to rising estrogen levels and greater blood flow to the vaginal area. Leukorrhea is your body's way of protecting the birth canal from infection, and while it can feel like a lot, it's a healthy and expected part of pregnancy.

Green discharge during pregnancy, however, isn’t normal and should never be ignored. A greenish tint is typically a sign of an underlying infection, such as BV, trichomoniasis, or an STI like chlamydia or gonorrhea. These infections are particularly important to identify and treat during pregnancy because, left untreated, they carry a significantly elevated risk of complications. Both BV and trichomoniasis have been linked to preterm birth, premature rupture of membranes, and low birth weight. Untreated STIs like chlamydia and gonorrhea can also be passed to the baby during delivery, potentially causing serious health problems, including eye infections, pneumonia, and, in severe cases, sepsis.

The challenge is that many of these infections cause few or no other symptoms, which means green discharge may be the only visible sign that something is wrong. If you notice green or yellow-green discharge at any point during pregnancy, contact your healthcare provider promptly. Testing and treatment early in pregnancy are safe, effective, and among the most important steps you can take for both your own health and your baby's.

Does green discharge always mean I have an STI?

Green discharge doesn’t always mean you have an STI, but it can be a sign of one. However, not all greenish discharge is due to an STI.

Sometimes, BV or other non-sexually transmitted infections can cause discharge that looks pale green or gray, particularly when the vaginal pH is disrupted. In rare cases, cervicitis (inflammation of the cervix) or certain bacterial infections can also lead to greenish discharge.

If you notice green vaginal discharge — especially if it's accompanied by itching, odor, or burning — it’s a sign of infection and should be checked by a healthcare provider. Testing is the only way to know for sure what’s causing it, whether it’s an STI, BV, or something else. Prompt treatment can help prevent complications and relieve symptoms.

What different shades of green discharge mean

Not all green discharge looks the same, and the specific shade can offer useful clues about what might be going on. That said, no shade of green is considered normal. Any greenish discharge warrants attention, even if you don't have other symptoms.

• Pale or light green discharge is often the earliest or mildest sign of infection. It can be easy to dismiss as an off-white or yellowish color in certain lighting, but a consistent light green tint is most commonly associated with BV or early-stage trichomoniasis, particularly when accompanied by a fishy odor or mild irritation.
• Yellow-green discharge is one of the most frequently reported shades and has the widest range of possible causes, including trichomoniasis, BV, chlamydia, and gonorrhea. Trichomoniasis in particular is known for producing a frothy, yellow-green discharge with a strong odor. If you notice this color along with itching, burning, or pelvic discomfort, it's important to get tested promptly.
• Bright green discharge typically signals a more active or progressed infection. It usually indicates a stronger immune response to the presence of bacteria or parasites and is most commonly associated with trichomoniasis or gonorrhea. Bright green discharge is unlikely to resolve on its own and will need antibiotic treatment.
• Neon green discharge is at the more severe end of the spectrum and is almost always a sign of significant infection and inflammation. The vivid color is caused by a high concentration of white blood cells responding to infection. It frequently comes with a strong or foul odor, intense itching, and burning, and requires prompt medical attention.
• Dark green discharge is less common but can indicate a more advanced or mixed infection, sometimes involving PID or a foreign object (like a forgotten tampon) that has caused a secondary bacterial infection. It is often accompanied by a particularly unpleasant odor and pelvic pain, and should be evaluated by a healthcare provider as soon as possible.

Because these shades can overlap and look different depending on lighting or the color of your underwear, the only reliable way to identify the cause is to get tested.

How to prevent green discharge

While not every infection is entirely preventable, there are steps you can take to support your vaginal health and reduce your risk of the infections that cause green discharge:

• Use condoms consistently: Barrier methods significantly reduce the risk of STIs like trichomoniasis, gonorrhea, and chlamydia, all common causes of green discharge.
• Get regular STI testing: Many infections that cause green discharge often cause few or no symptoms, making routine testing essential, especially if you have new or multiple partners.
• Avoid douching: Douching disrupts the natural balance of bacteria in the vaginal microbiome and increases the risk of BV, one of the leading causes of abnormal discharge.
• Choose fragrance-free products: Scented soaps, washes, and wipes around the vulva can alter vaginal pH and create conditions where harmful bacteria thrive.
• Know your microbiome: Regular vaginal microbiome testing with Evvy can help you spot imbalances early and take targeted action to support your vaginal health.

Should I get tested if I notice green vaginal discharge?

Yes, you should get tested if you have green vaginal discharge, especially (but not limited to) if you’re experiencing any itching, burning, odor, or any sort of discomfort. It can sometimes be a sign of a bacterial infection, such as trichomoniasis, BV, or PID. 

The sooner you get tested after noticing symptoms, the better. This helps prevent any complications and keeps you from spreading an infection. You can talk to your healthcare provider about getting a vaginal swab and a nucleic acid amplification test (NAAT) to check for Trichomonas vaginalis and BV-related bacteria.

You have options for testing: you can visit a doctor, OB-GYN, or a sexual health clinic, or you might prefer the convenience of at-home tests like Evvy, which look for various microbes connected to green vaginal discharge. The key is early testing, which leads to quicker diagnoses and treatment, so you can start feeling better and take care of your reproductive health. 

When to see a healthcare provider

If you notice green discharge, it's your body's way of signaling that something isn’t quite right. The good news is that most causes are treatable with the right care. Whether it’s an infection like trichomoniasis, bacterial vaginosis, or something as simple as a forgotten tampon, a quick visit to your healthcare provider can help diagnose and resolve the issue. As tempting as it might be, it's best not to self-diagnose.

While green discharge usually points to an infection or imbalance, it’s also important to pay attention to other unusual symptoms. You should make an appointment with your healthcare provider if you notice any of the following sudden changes:

• A fishy or foul odor
• Itching, burning, or swelling in or around the vagina
• Discomfort or pain when you pee or have sex
• Vaginal bleeding
• Abdominal or pelvic pain
• Fever or chills. 

FAQs about green discharge 

What causes light green discharge? 

If you notice a light green discharge, it could be a sign of an infection or imbalance in your vaginal environment. One common cause is trichomoniasis, which is a sexually transmitted infection that can lead to frothy, green vaginal discharge along with itching or burning. Another possibility is BV, where an imbalance of bacteria in the vagina may produce a green-tinged discharge, usually accompanied by a fishy odor. Gonorrhea, another sexually transmitted infection, can also cause light green discharge, though it’s often accompanied by other symptoms like pelvic pain. Additionally, foreign objects, such as a forgotten tampon, can lead to infection, resulting in greenish discharge. It’s important to consult a healthcare provider for proper diagnosis and treatment, especially if accompanied by other symptoms like itching, odor, or discomfort.

Does green discharge mean you are pregnant?

Green vaginal discharge isn't a typical sign of pregnancy. It's more likely to be linked with a bacterial infection like trichomoniasis or BV. If you're concerned about pregnancy and notice green discharge, it's important to see a healthcare provider. They can help determine whether there's an infection that needs treatment and confirm whether you're pregnant. Healthy discharge during pregnancy is usually white or clear. You may also notice more discharge, especially at the start and end of your pregnancy.

Is green discharge normal before your period? 

Green vaginal discharge isn't considered normal before your period. Healthy vaginal discharge before a period is usually white, clear, or it can be pink or brown due to the presence of blood. If your vaginal discharge appears green, it often signals an underlying issue, such as a bacterial infection like BV, trichomoniasis, or an STI. These conditions may cause a greenish tint, along with other symptoms such as itching, an unusual odor, or discomfort.

Can poor hygiene cause green discharge?

Green discharge is most often linked to infections like trichomoniasis or BV, not directly to hygiene habits. However, practicing good hygiene, like changing underwear daily and changing your tampon or menstrual cup within the recommended time frame, helps maintain a healthy vaginal environment and may reduce your risk of developing infections that cause abnormal discharge.

Why is it lime green when I wipe?

Seeing lime green discharge when you wipe can be surprising, and it’s often a sign of an infection. The green color usually comes from the body’s response to inflammation or the presence of certain microbes. If it’s bright or lime green, especially with a strong odor, itchiness, or irritation, it’s best to get tested. Even if you feel fine otherwise, green discharge isn’t typical for a healthy vagina and should be checked by a healthcare provider.

Why does my white discharge look green on toilet paper?

If your discharge has a green tint, it may be a sign of an infection, especially if there’s a change in texture, odor, or symptoms like itching. It’s important to observe whether the color change happens consistently. If you’re unsure or it keeps happening, it’s a good idea to get tested to rule out infections like trichomoniasis or BV and make sure everything’s okay.

Why is my discharge neon green?

Neon green discharge is usually a clear sign that something isn’t right — most commonly, it points to a vaginal infection like trichomoniasis. This bright, unnatural color is typically caused by inflammation and an immune response to infection. It might also have a strong or foul smell and be accompanied by itching or burning. While rare, it can sometimes signal a more serious issue that requires treatment. Even if you don’t have other symptoms, it’s important to get tested so you can identify the cause and get proper care.

Can green discharge go away on its own?

Green discharge is unlikely to go away on its own. Because it's almost always caused by a bacterial or parasitic infection, it typically requires targeted antibiotic or antiparasitic treatment to clear. Waiting it out risks allowing the infection to progress, which can lead to more serious complications like PID or, during pregnancy, preterm birth. If you notice green discharge, even without other symptoms, getting tested is always the right move rather than hoping it resolves on its own.

What antibiotics treat green discharge?

The antibiotic used depends on the underlying cause. Trichomoniasis is treated with metronidazole or tinidazole, usually as a single oral dose, and both partners need to be treated simultaneously to prevent reinfection. BV is also commonly treated with metronidazole, either orally or as a topical vaginal gel, or with clindamycin. Gonorrhea is now typically treated with a dual antibiotic approach of ceftriaxone plus doxycycline or azithromycin, due to rising antibiotic resistance. Chlamydia is usually treated with doxycycline or azithromycin. Because the treatments differ, getting an accurate diagnosis before starting any antibiotics is essential to make sure you're treating the right infection.

Is BV ever green?

BV usually causes grey or off-white discharge that smells fishy. Sometimes, the discharge may have a greenish tint, especially if the vaginal pH is disrupted or BV occurs alongside another infection. This situation is called a mixed infection, in which different bacteria grow simultaneously. BV symptoms can look similar to those of trichomoniasis, gonorrhea, and chlamydia, which more often cause green discharge. Because of this overlap, it can be hard to determine the cause solely from the color of the discharge. Testing is necessary to determine whether BV, another infection, or both are causing the symptoms.

Can I ignore green discharge?

No, green discharge is one vaginal symptom you shouldn't wait on. Unlike minor changes in discharge color or consistency that can reflect normal hormonal shifts, green discharge almost always signals an underlying infection that needs treatment. Leaving it untreated increases the risk of the infection spreading or worsening, and in some cases can lead to serious long-term complications, including PID, chronic pelvic pain, and fertility problems. During pregnancy, the stakes are even higher, with untreated infections linked to preterm birth and neonatal health issues. Even if you feel fine otherwise, green discharge warrants a test, not a wait-and-see approach.