Clear or white vaginal discharge without a strong smell, itching or pain is usually normal. Yellow, green or grey discharge, a strong or fishy odour, itching, burning, pelvic pain or bleeding can be a sign of an infection or another condition and should be checked by a healthcare professional.
The amount and texture of vaginal discharge naturally change during the menstrual cycle, around ovulation and during pregnancy. What matters most is recognising what is normal for you and noticing when something changes.
What Is Normal Vaginal Discharge?
Vaginal discharge is fluid containing cells and bacteria that comes from the vagina. It is a normal part of vaginal health and helps keep the vagina clean and maintain its natural environment.
Normal vaginal discharge is generally clear, white or off-white and shouldn’t have a strong unpleasant smell. Its consistency can vary from watery or sticky to creamy or stretchy.
The amount can also change throughout the menstrual cycle. You may see more discharge around ovulation, during pregnancy or when using some forms of hormonal contraception.
There isn’t one amount or texture that is normal for everyone. A change from your usual pattern is often more useful than comparing yourself with someone else.
What Do Different Types of Vaginal Discharge Mean?
Vaginal discharge colour and texture can provide useful clues, but colour alone cannot diagnose an infection.
Clear or Watery Vaginal Discharge
Clear or watery discharge is commonly normal, particularly around certain points in the menstrual cycle.
You may also notice more clear discharge around ovulation, during pregnancy or after physical activity. A sudden change accompanied by pain, itching, a strong smell or other symptoms deserves medical assessment.
White or Milky Vaginal Discharge
White or milky white discharge can also be completely normal.
Normal white discharge generally doesn’t cause itching, burning or a strong odour. However, thick white discharge accompanied by significant itching or irritation can occur with a vaginal yeast infection.
Sticky or Stretchy Vaginal Discharge
Sticky discharge can occur normally as hormone levels change during the menstrual cycle.
Around ovulation, discharge often becomes clearer, wetter and more stretchy. This physiological discharge is associated with the fertile part of the menstrual cycle and isn’t normally a sign of infection.
Yellow or Green Vaginal Discharge color
Yellow or green discharge is more likely to need assessment, particularly when it is accompanied by an unpleasant smell, irritation, pelvic discomfort or pain when urinating.
Possible causes include infections such as trichomoniasis. Chlamydia and gonorrhoea can also cause abnormal discharge in some people, although sexually transmitted infections do not always cause symptoms.
Grey Discharge With a Fishy Odour
Thin white or grey discharge with a noticeable fishy smell is commonly associated with bacterial vaginosis (BV).
BV occurs when the normal balance of bacteria in the vagina changes. It isn’t the same as a yeast infection, and the treatments are different, which is one reason diagnosing the cause before treating abnormal vaginal discharge is useful.
Brown or Bloody Discharge
Brown discharge often contains older blood and can occur towards the beginning or end of a menstrual period.
Bleeding or blood-stained discharge that is unexpected, repeatedly occurs between periods, happens after sex or occurs after menopause should be discussed with a healthcare professional.
When Can Vaginal Discharge Be a Sign of an Infection?
A change in discharge doesn’t automatically mean you have an infection.
However, infection becomes more likely when unusual discharge occurs with other symptoms, including:
- A strong, unpleasant or fishy odour
- Itching, burning or swelling
- Yellow, green or grey discharge
- Thick, cottage cheese-like discharge with itching
- Frothy discharge
- Pain when urinating
- Pelvic pain or discomfort
Bacterial vaginosis, vaginal yeast infection and trichomoniasis are among the most common infectious causes of abnormal vaginal discharge. Research on the evaluation of vaginal discharge suggests these three conditions account for a large proportion of cases caused by infection.
The symptoms overlap, however, so appearance alone isn’t always enough to tell them apart.
Vagina Discharge can be a Sign of Sexually Transmitted Infection
Sometimes. Be safe, wear a condom!
Trichomoniasis can cause yellow, green or grey frothy discharge. Chlamydia and gonorrhoea may also produce cloudy, yellow or green discharge in some people.
But vaginal discharge by itself is not a reliable way to determine whether you have an STI. Some STIs cause no obvious symptoms, while abnormal discharge can have many non-sexually transmitted causes. Clinical research has specifically cautioned that abnormal vaginal discharge alone is a poor predictor of an STI.
If there is a possibility of exposure through a sexual partner, testing is more reliable than trying to diagnose an STI from the colour of discharge.
[Learn more about confidential STI testing at WellMed →]
What Are the Possible Causes of Abnormal Vaginal Dischargeor?
Infection such as vagibitis is one important cause, but it isn’t the only one.
Bacterial Vaginosis
Bacterial vaginosis results from an imbalance in the normal vaginal bacteria. Typical symptoms include thin white or grey discharge and a fishy odour.
Vaginal Yeast Infection
A yeast infection occurs when Candida yeast grows excessively. It commonly causes significant itching and irritation alongside thick white discharge often described as cottage cheese-like.
Trichomoniasis and Other STIs
Trichomoniasis can cause frothy yellow, green or grey discharge. Chlamydia and gonorrhoea can also change vaginal discharge, although both can occur without noticeable symptoms.
Hormonal Changes
Ovulation, pregnancy, hormonal contraception, breastfeeding and menopause can all change the amount or consistency of normal vaginal discharge.
Irritation
Soaps, scented products, detergents, lubricants and other products that contact the vaginal area can sometimes cause irritation and discharge changes.
A Retained Foreign Body
A forgotten tampon or another retained object can cause abnormal discharge and an unpleasant smell and requires medical attention.
What Is the Best Treatment options for Vaginal Discharge?
The best treatment depends on the cause. Normal vaginal discharge doesn’t need treatment, while abnormal discharge caused by infection needs treatment directed at that specific infection.
For example, vaginal yeast infections are generally treated with antifungal medication, while bacterial vaginosis and some sexually transmitted infections require appropriate antibiotics.
Because several conditions can produce similar symptoms, repeatedly treating yourself for “thrush” without confirming the cause can lead to the wrong problem being treated. Medical literature has documented women presenting with supposed recurrent thrush despite never having had the diagnosis confirmed.
If the discharge is unusual for you, persists or occurs with other symptoms, identifying the cause is preferable to choosing treatment based only on colour or texture.
How Is Abnormal Vaginal Discharge Diagnosed?
A healthcare professional will usually begin by asking about the change in discharge and any accompanying symptoms.
Useful information includes:
- When the change began
- Colour, smell and texture
- Itching, irritation or pain
- Pelvic symptoms
- Your menstrual cycle
- Sexual history where relevant
- Recent medication or product changes
Depending on the symptoms, examination or a sample of the discharge may be appropriate. Laboratory testing can help distinguish conditions such as bacterial vaginosis, candidiasis, trichomoniasis, chlamydia and gonorrhoea when clinically indicated.
An accurate diagnosis matters because these conditions do not all require the same treatment.
Vaginal Discharge After Menopause: Is It Normal?
Vaginal changes are common around and after menopause because oestrogen levels fall.
Lower oestrogen can make vaginal tissue thinner and drier and can alter discharge. However, new or persistent discharge after menopause — particularly if it contains blood, has an unpleasant smell or occurs with pelvic symptoms — should be assessed rather than automatically attributed to ageing.
The same applies to unexplained bleeding after menopause.
Can You Treat Vaginal Discharge at Home?
Normal discharge doesn’t need to be stopped or “cleaned away”. It is part of how the vagina maintains itself.
Avoid douching. It can disturb the normal vaginal flora and increase the risk of infection rather than correcting abnormal discharge.
If irritation appears to follow a new scented soap, wash or other product, stopping the irritant may help.
However, home care cannot reliably distinguish bacterial vaginosis, a yeast infection and an STI. Persistent abnormal discharge or discharge accompanied by pain, odour, itching or other symptoms is better assessed properly.
When Should You See a Doctor About Vaginal Discharge?
See a healthcare professional if the discharge is clearly different from normal for you and doesn’t settle, particularly when it occurs with:
- A strong or fishy smell
- Green, yellow or grey colour
- Significant itching, burning or swelling
- Pelvic or lower abdominal pain
- Pain when urinating
- Unexpected bleeding
- Symptoms after possible STI exposure
These symptoms don’t necessarily mean something serious is wrong, but they can help a doctor determine whether testing or treatment is needed.
If you’re in Bangkok and concerned about a change in vaginal discharge, a WellMed doctor can assess your symptoms and advise whether examination, laboratory testing, STI testing or further care is appropriate.
Understanding What Your Vaginal Discharge Is Telling You
Most vaginal discharge is normal. Clear, white, watery, creamy or stretchy discharge can all occur as part of healthy vaginal function and the menstrual cycle.
The signs worth paying attention to are changes from your normal pattern, particularly unusual colour, a strong smell, itching, burning, pain or unexpected bleeding.
If you aren’t sure what is causing the change, don’t try to diagnose an infection from discharge colour alone. An appropriate assessment can distinguish normal changes from bacterial vaginosis, yeast infection, an STI or another cause and ensure that any treatment actually matches the problem.
About WellMed Bangkok Clinic
WellMed Bangkok Clinic provides medical care for residents, expats and visitors in Bangkok, with clinics in Asoke and Silom.
Services include doctor consultations, laboratory testing, sexual health care, confidential STI testing, health check-ups and other primary care services. If you have unusual vaginal discharge or symptoms of a vaginal infection, a doctor can assess the likely cause and advise on appropriate testing or treatment.
Frequently Asked Questions About Vaginal Discharge
Vaginal discharge varies considerably between individuals and throughout the menstrual cycle. These answers cover some of the most common questions about what is normal and when a change may need assessment.
What is the best treatment for vaginal discharge?
Normal vaginal discharge doesn’t require treatment. If abnormal discharge is caused by an infection, treatment depends on the diagnosis — for example, antifungal medication for a yeast infection or appropriate antibiotics for bacterial infections.
Is it normal for an older woman to have discharge?
Some vaginal discharge can occur at any age, but menopause changes vaginal tissue and discharge because of lower oestrogen levels. New, persistent, bloody or unpleasant-smelling discharge after menopause should be assessed by a healthcare professional.
How do I get my discharge back to normal?
If the discharge is a normal hormonal or menstrual-cycle change, no treatment is needed. If it has changed because of infection or irritation, treating or removing the underlying cause is what allows it to return to normal.
How do I know if my discharge is an infection?
A strong or fishy smell, yellow, green or grey discharge, significant itching, burning, swelling or pelvic pain can suggest infection. Symptoms overlap between conditions, so testing may be needed to determine the actual cause.
How can I treat vaginal discharge at home?
Normal discharge doesn’t need home treatment, and douching should be avoided. If discharge is abnormal, persistent or accompanied by pain, itching, odour or unusual colour, getting the cause diagnosed is safer than repeatedly self-treating it.
What is the most common reason for vaginal discharge?
The most common reason is simply normal vaginal function. Discharge naturally changes with the menstrual cycle, ovulation, pregnancy and hormonal changes; when abnormal discharge is caused by infection, bacterial vaginosis and vaginal yeast infection are common causes.
When should I worry about vaginal discharge?
Seek medical advice when discharge changes significantly from normal for you and occurs with a strong smell, itching, burning, pelvic pain, pain when urinating or unexpected bleeding. Persistent green, yellow or grey discharge should also be assessed.
What kind of vaginal discharge is alarming?
Discharge that is green or grey, strongly unpleasant or fishy smelling, bloody when bleeding isn’t expected, or accompanied by significant pain, fever or pelvic symptoms deserves medical assessment. Colour alone doesn’t establish the diagnosis.
Why am I suddenly having so much clear discharge?
A temporary increase in clear discharge can occur around ovulation, during pregnancy or with hormonal changes. If the increase is persistent or occurs with pain, odour, itching or other unusual symptoms, speak to a healthcare professional.
Sources
- Cleveland Clinic — Vaginal Discharge: Causes, Colors & What’s Normal. Medically reviewed and updated January 2026. Guidance on normal discharge, colour, texture, infection and when to seek medical care. Cleveland Clinic vaginal discharge guidance
- WebMD — Vaginal Discharge: Causes, Types, Diagnosis and Treatment. Medically reviewed October 2025. Guidance on causes, diagnosis and treatment. WebMD vaginal discharge guide
- Singapore Medical Journal — Vaginal discharge: evaluation and management in primary care. Clinical review of common infectious and non-infectious causes and evaluation. Clinical review on vaginal discharge
- BMJ — Vaginal discharge: causes, diagnosis and treatment. Clinical review of physiological and pathological discharge, investigations and management. BMJ clinical review
