Vaginal Discharge Colour Guide

What’s Normal and When to Test

Vaginal Discharge Colour Guide | Marylebone Diagnostic Centre

Vaginal discharge is a normal part of how the body keeps the vagina healthy. However, changes in colour, texture, or amount can cause worry.

Many women notice discharge looks different at certain times of the month, during pregnancy, or when stressed. Often, these changes are harmless. Sometimes, they may need checking.

This guide explains what vaginal discharge is, what different colours can mean, and when testing may help provide reassurance.

What is vaginal discharge?

Vaginal discharge is fluid made by glands inside the vagina and cervix. Its purpose is to protect against infection and keep the vaginal environment balanced.

Note: Healthy discharge should not cause pain, burning, or strong odour.

Discharge can change due to:

  • Hormonal shifts
  • Menstrual cycle stages
  • Pregnancy
  • Stress or illness
  • Sexual activity

Types of vaginal discharge (colour guide)

Clear

Clear discharge

Clear discharge is very common and usually normal. It often appears:

  • Around ovulation
  • After exercise
  • During sexual arousal
  • In early pregnancy

Clear, stretchy discharge often indicates healthy hormonal activity.

White

White discharge

White discharge is usually normal. It may be creamy or thick, and odourless or mild-smelling.

Is it normal to have white discharge every day?

Yes. Many women experience white discharge daily, especially after ovulation.

White discharge may need checking if it becomes:

  • Clumpy
  • Itchy
  • Painful
  • Associated with redness
Yellow

Yellow discharge with no odour

Yellow discharge without odour is often harmless. It may occur before a period, after ovulation, or due to mild hormonal changes. If there is no pain, itching, or smell, it is usually not an infection.

Yellow discharge before a period

This is common and usually linked to hormonal fluctuations, cervical mucus changes, and natural cell shedding. It often resolves once the period starts.

Yellow discharge during pregnancy

Pregnancy increases blood flow to the vagina, which can increase discharge. Yellow discharge in pregnancy can be normal if there is no strong smell, pain, or itching. Any new or worrying symptoms should be checked.

Green

Yellow-green or green discharge

Yellow-green or green discharge is less typical. It may be associated with vaginal infections or sexually transmitted infections (STIs).

This type of discharge is more likely to need testing, especially if symptoms persist.

Brown

Brown or bloody discharge

Brown discharge usually contains old blood. It may occur before or after a period, after ovulation, after sex, or between periods.

Occasional brown discharge can be normal. Repeated bleeding should be assessed.

What type of discharge is unhealthy?

Discharge may be unhealthy if it is accompanied by any of the following symptoms:

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Strong or unpleasant smell

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Pain or burning

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Itching or swelling

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Fever or pelvic discomfort

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Bleeding after sex

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Sudden changes lasting more than a few days

Important: Colour alone does not always indicate infection. Symptoms matter more. If you notice these signs, professional testing is recommended.

Vulvovaginitis in children – what parents should know

Vulvovaginitis is common in young girls and can often be managed with simple changes at home.

It often occurs due to:

  • Sensitive skin
  • Poor air circulation
  • Irritation from soaps or bubble baths

How to manage vulvovaginitis in children:

  • Avoid fragranced products
  • Use plain water for washing
  • Wear loose cotton underwear
  • Keep the area dry

Is discharge normal during pregnancy?

Yes. Increased discharge is common during pregnancy. Normal pregnancy discharge is usually white or clear, mild-smelling, and not painful.

Seek advice if discharge becomes:
  • Green or yellow-green
  • Strong-smelling or painful
  • Associated with bleeding or fever

How to stop discharge every day

Daily discharge cannot be completely stopped and usually should not be. However, irritation can be reduced by:

  • Avoiding douching
  • Using gentle, fragrance-free products
  • Wearing breathable underwear
  • Managing stress levels

Discharge is part of a healthy vaginal environment.

When changes may need checking

It may be worth checking discharge if it:

  • Changes suddenly and does not settle
  • Becomes green or yellow-green
  • Develops an unpleasant smell
  • Associated with pain or itching
  • Appears after unprotected sex
  • Occurs alongside abnormal bleeding

When to seek medical advice

Medical advice is recommended if symptoms:

  • Last longer than 5–7 days
  • Worsen over time
  • Occur during pregnancy
  • Interfere with daily comfort

How testing can help

Testing helps identify infections, hormonal changes, pregnancy-related causes, or underlying imbalances. It provides clarity and avoids unnecessary treatment. Testing provides clarity and avoids unnecessary treatment. It does not automatically mean something serious is wrong.

Tests commonly used:

Vaginal swab testing STD screening Hormone blood tests Pregnancy blood tests

*The most appropriate test depends on symptoms and cycle timing.

Frequently Asked Questions

It is fluid that protects and cleans the vagina.

Yes. This is common for many women.

No. Odour and symptoms are more important than colour.

Yes. Stress can influence hormones and vaginal balance.

Infections may affect fertility if untreated.

Not always. Testing helps when symptoms persist or worsen.

Yes. Many mild changes resolve naturally.

How MDC supports women’s health

Marylebone Diagnostic Centre provides private women’s health testing in central London, focusing on a patient-first approach to diagnostic care.

Discreet, respectful care

Private suites ensuring your complete confidentiality.

Clear explanations

Results that are easy to understand and act upon.

Appropriate testing only

We only recommend tests that are relevant to your symptoms.

Optional clinician review

Access to expert insights from our medical team.

No GP referral is required for any of our tests.
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