Vaginal discharge is a natural part of the female reproductive system and reflects the way the vagina keeps itself clean and protected. Its appearance changes with hormones, age and sexual activity. Understanding what is normal — and what may signal a problem — can help you respond to changes with confidence.
What healthy vaginal discharge looks like
Throughout the menstrual cycle, cervical mucus shifts in response to hormonal changes. These variations are normal and reflect different stages of your cycle:
- After a period: Discharge is often minimal, thicker or slightly cloudy.
- Around ovulation: Clear, stretchy and slippery, similar to raw egg white. This consistency assists sperm movement.
- Before a period: Creamier or thicker in texture.
Other normal causes of changes in discharge
Pregnancy can increase moisture due to higher hormone levels. Sexual arousal also leads to a clear, slippery fluid that acts as natural lubrication. After menopause, reduced oestrogen commonly causes vaginal dryness and thinner discharge.
As long as discharge remains comfortable, without a strong odour, itching or pain, these variations are considered normal and do not usually require treatment.
What can cause abnormal changes in vaginal discharge
Although changes often reflect natural hormonal shifts, certain conditions may alter the smell, colour or texture of vaginal discharge. The most common causes include:
- Yeast infection (thrush): Thick white discharge, often described as cottage cheese-like, with itching, redness or burning.
- Bacterial vaginosis (BV): Grey or thin discharge with a noticeable fishy odour, particularly after sex.
- Sexually transmitted infections (STIs): Some STIs can cause yellow, green or pus-like discharge. Many STIs cause no symptoms at all, so testing is important if there is any risk of exposure.
When to seek medical advice
It is recommended to speak with a healthcare professional if you experience any of the following:
- A sudden or persistent change in colour, odour or consistency
- Itching, burning, irritation or swelling
- Pelvic pain or pain during sex
- Painful or uncomfortable urination
- Bleeding between periods or after sex
- Symptoms following a new sexual partner
- Concern about possible infection or pregnancy
A clinician can take a thorough history, perform an examination if required, and arrange appropriate testing or treatment to identify the underlying cause.
Talk to an online doctor in confidence
If you are unsure whether your symptoms are normal, you can speak with one of our online doctors for personalised advice through a confidential telehealth consultation — without needing to attend a clinic in person.
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