Vaginal discharge during pregnancy is common and often completely normal. As pregnancy progresses, hormonal changes and increased blood flow to the pelvic area can cause more discharge than usual.
This discharge is often called leukorrhea. Normal pregnancy discharge is usually thin, clear or milky white and does not have a strong unpleasant smell.
However, changes in the colour, smell, consistency or amount of discharge can sometimes indicate an infection or another condition that needs medical attention.
In this article, we explain what normal discharge during pregnancy looks like, what different colours may mean, how discharge changes across the trimesters, and when to contact your doctor.
Is Discharge During Pregnancy Normal?
Yes, increased vaginal discharge is common during pregnancy. Hormonal changes and increased blood flow to the vaginal area contribute to this change.
According to the NHS guide to vaginal discharge during pregnancy, healthy pregnancy discharge is usually thin, clear or milky white and should not smell unpleasant.
Normal pregnancy discharge generally has these characteristics:
- Clear, white or milky in colour
- Thin or slightly sticky in consistency
- Mild-smelling or almost odourless
- Not associated with itching or burning
- More noticeable as pregnancy progresses
If your discharge looks like this and you have no other concerning symptoms, it is usually a normal part of pregnancy.
You can also explore our pregnancy symptoms week-by-week guide to learn about other changes you may experience during pregnancy.
What Is Normal Pregnancy Discharge Called?
Normal vaginal discharge during pregnancy is commonly called leukorrhea.
It is generally thin, white or milky and has little or no unpleasant odour. The amount may increase because of hormonal changes and increased blood flow to the reproductive organs.
Leukorrhea is different from abnormal discharge caused by certain vaginal infections.
Discharge During Pregnancy by Trimester
Discharge may change throughout pregnancy. Understanding these changes can help you recognise what is generally expected and what requires medical attention.
Discharge During the First Trimester
During early pregnancy, hormonal changes may cause an increase in vaginal discharge.
You may notice:
- More discharge than usual
- Clear or milky-white discharge
- Increased vaginal moisture
These changes are often normal when there is no unpleasant smell, itching, burning or pain.
Read our guide to the first trimester of pregnancy for more information about early pregnancy symptoms and body changes.
If you experience vaginal bleeding, especially with abdominal pain or severe cramping, contact your healthcare provider promptly.
Discharge During the Second Trimester
Discharge may continue to increase during the second trimester.
Normal discharge is generally clear or white, thin or slightly sticky, and free from a strong unpleasant smell.
To stay comfortable, wear breathable cotton underwear and change it when necessary.
For more information about this stage, read our second-trimester pregnancy guide.
Discharge During the Third Trimester
Discharge may become more noticeable during the third trimester.
Near the end of pregnancy, you may also notice thicker mucus as the mucus plug begins to change or come away.
The mucus plug can look clear, white, pink or slightly blood-streaked. A small amount of blood mixed with mucus may be part of the “show”, which can occur as the cervix begins to change before labour.
However, heavy bleeding or continuous watery fluid leakage should never be assumed to be normal.
The NHS guide to the signs that labour has begun explains how a mucus show differs from other signs of labour.
What Do Different Discharge Colours Mean During Pregnancy?
The colour of vaginal discharge can provide clues, but colour alone cannot confirm the cause. Other symptoms, such as itching, odour, pain or bleeding, are also important.
Clear or White Discharge
Clear, white or milky discharge is commonly associated with normal pregnancy changes, particularly when there is no unpleasant smell, itching or irritation.
Yellow Discharge
Yellow discharge may sometimes be associated with an infection, particularly if it has an unpleasant smell or occurs with itching, burning or pain during urination.
Contact your healthcare provider if you notice persistent or unusual yellow discharge.
Green Discharge
Green discharge is not typical of normal pregnancy discharge and may indicate an infection.
Speak to your doctor or maternity care provider, particularly if you also experience an unpleasant smell, itching, irritation or pain.
Grey Discharge
Greyish discharge, particularly when accompanied by a strong or unusual smell, may be associated with bacterial vaginosis.
A healthcare professional can assess your symptoms and determine whether treatment is needed.
Pink Discharge
Pink discharge may contain a small amount of blood.
Near the end of pregnancy, pink or blood-streaked mucus can sometimes occur as the cervix changes before labour. However, bleeding during pregnancy should be discussed with your healthcare provider.
Brown Discharge
Brown discharge generally indicates older blood.
There are several possible causes of bleeding during pregnancy, and colour alone cannot determine whether the cause is harmless.
Contact your healthcare provider if you notice brown discharge, particularly if it persists or occurs with abdominal pain.
Red or Bloody Discharge
Red or bloody discharge should not be ignored during pregnancy.
Seek urgent medical advice for vaginal bleeding during pregnancy. Heavy bleeding, severe abdominal pain, fainting or significant dizziness requires emergency medical assessment.
The American College of Obstetricians and Gynecologists (ACOG) identifies vaginal bleeding and fluid leakage as symptoms that may require prompt medical attention.
Watery Discharge During Pregnancy
Watery discharge deserves particular attention because it can sometimes be difficult to distinguish normal discharge from amniotic fluid.
Amniotic fluid may leak as a continuous trickle or a sudden gush that you cannot control.
If you think your waters may have broken, contact your maternity unit, doctor or midwife promptly. Do not wait for contractions to begin.
This is especially important if you are less than 37 weeks pregnant.
Other warning signs include:
- Continuous watery leakage
- Fluid that is green or brown
- Fluid containing blood
- Fluid with an unpleasant smell
- Leakage accompanied by abdominal pain or contractions
- Reduced baby movements
Read the NHS guidance on premature labour and birth for more information about fluid leakage before 37 weeks.
Thick or Jelly-Like Discharge During Pregnancy
Thick, jelly-like discharge can occur during pregnancy. Towards the end of pregnancy, it may be part of the mucus plug.
The mucus plug acts as a barrier at the cervix during pregnancy. As the cervix begins to soften and change before labour, some or all of the mucus plug may come away.
It may look:
- Thick or sticky
- Jelly-like
- Clear or white
- Pink or slightly blood-streaked
Losing the mucus plug does not necessarily mean labour will begin immediately.
However, if you notice bleeding beyond a small amount of blood-streaked mucus, contact your maternity care provider urgently.
Does Discharge Mean Labour Is Near?
Not necessarily. Increased discharge is common throughout pregnancy and does not, by itself, mean that labour is about to begin.
Near the end of pregnancy, you may notice thicker mucus or a blood-tinged discharge called a “show”.
Other signs of labour include regular contractions that become stronger and closer together, backache, pelvic pressure and your waters breaking.
If you think you are in labour or your waters have broken, contact your maternity care provider.
Discharge During Pregnancy With an Unpleasant Smell
Normal pregnancy discharge usually does not have a strong unpleasant smell.
A sudden or persistent change in odour may be associated with an infection, particularly when combined with:
- Yellow, green or grey discharge
- Itching or burning
- Vaginal irritation
- Pain during urination
- Pelvic discomfort
Do not try to diagnose the cause based on smell alone. Your healthcare provider may recommend an examination or testing.
Discharge During Pregnancy With Itching
Itching or irritation alongside unusual discharge may indicate a vaginal infection.
For example, vaginal thrush can cause itching and thick white discharge. Bacterial vaginosis may cause unusual discharge and a strong smell.
Other infections can also cause changes in discharge.
If you experience persistent itching, burning or unusual discharge, consult your doctor. Avoid self-treating during pregnancy without professional advice.
How to Manage Normal Discharge During Pregnancy
If your discharge appears normal and you have no concerning symptoms, these measures may help you stay comfortable.
1. Wear breathable underwear: Cotton underwear may help reduce moisture and irritation.
2. Change underwear when necessary: Changing damp underwear can help you feel more comfortable.
3. Keep the area clean: Wash the external genital area gently with water or a mild, unscented product suitable for your skin.
4. Avoid vaginal douching: Douching can disturb the vagina’s natural balance.
5. Avoid strongly scented products: Perfumed washes, sprays and other scented products may irritate sensitive skin.
6. Do not self-treat an infection: Consult your healthcare provider before using medicines or treatments for unusual discharge during pregnancy.
When Should You Contact a Doctor About Pregnancy Discharge?
Contact your doctor, midwife or maternity care provider if your discharge:
- Has a strong or unpleasant smell
- Becomes green, grey or unusually yellow
- Is accompanied by persistent itching or burning
- Causes pain during urination
- Occurs with pelvic or abdominal pain
- Is associated with vaginal bleeding
- Becomes suddenly much heavier or different from your usual discharge
- Is continuously watery and you suspect your waters may have broken
Seek urgent medical attention for heavy bleeding, severe abdominal pain, fainting or significant dizziness. If you suspect your waters have broken, contact your maternity unit promptly.
Frequently Asked Questions About Discharge During Pregnancy
Is white discharge normal during pregnancy?
Yes. Clear, white or milky discharge without an unpleasant smell, itching or irritation is commonly normal during pregnancy.
Is watery discharge normal during pregnancy?
Some watery discharge can occur during pregnancy, but continuous watery leakage may indicate that your waters have broken. Contact your maternity care provider promptly if you suspect this.
What colour discharge is normal during pregnancy?
Normal pregnancy discharge is usually clear, white or milky. Yellow, green, grey, pink, brown or red discharge needs to be considered alongside other symptoms and may require medical assessment.
Is yellow discharge during pregnancy normal?
Yellow discharge is not always a sign of a problem, but persistent or unusual yellow discharge, particularly with an unpleasant smell, itching or burning, should be assessed by a healthcare professional.
Is green discharge during pregnancy normal?
Green discharge is not typical of normal pregnancy discharge and may indicate an infection. Contact your healthcare provider for assessment.
What does thick white discharge mean during pregnancy?
Thick white discharge can have several causes. If it resembles cottage cheese and causes significant itching or irritation, it may be associated with vaginal thrush.
Can discharge be a sign of labour?
Changes in discharge can occur near labour, including the release of the mucus plug or a blood-tinged show. However, discharge alone does not confirm that labour has started.
How can I tell the difference between discharge and amniotic fluid?
It can be difficult to tell the difference at home. Amniotic fluid may come as a gush or a continuous trickle that you cannot control. If you suspect your waters have broken, contact your maternity care provider promptly.
Should I worry about discharge during pregnancy?
Most increased clear or milky-white discharge is normal. However, unusual colour, an unpleasant smell, itching, burning, bleeding, pain or continuous watery leakage should be assessed by a healthcare professional.
Final Takeaway
Discharge during pregnancy is common, and increased clear or milky-white discharge is usually a normal part of pregnancy.
The important thing is to pay attention to changes in colour, smell, consistency and associated symptoms.
Normal discharge is generally clear or white and does not cause significant irritation. Unusual discharge, bleeding, persistent itching, pain or continuous watery leakage should be discussed with your doctor or maternity care provider.
Every pregnancy is different. If something feels unusual or concerning, getting professional advice is the safest approach.
Medical disclaimer: This article is for general educational purposes and does not replace medical advice, diagnosis or treatment from a qualified healthcare professional.
