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Vaginal discharge

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Fast facts

What is vaginal discharge?

The vagina acts as an important passageway between a woman's inner reproductive organs and the outside of her body. A healthy vagina produces fluid that keeps the vagina clean. This fluid is produced by glands in the vagina and cervix. Vaginal fluid helps maintain a healthy vaginal environment, as it carries away dead cells and bacteria and reduces the risk of infection.

The type and amount of vaginal discharge may vary between women and across a woman's lifetime. Changes in vaginal discharge can occur with pregnancy, ovulation, menopause or starting oral contraceptive medication.

Causes

There is a range of potential causes of abnormal vaginal discharge.

Common causes

Allergic vaginitis

The vagina is a delicate environment; using harsh products to clean this part of your body can affect its normal function. A common cause of a change in vaginal discharge is the use of harsh soaps or gels and douching while washing your body.

Bacterial infection

Although some bacteria are normally found in the vagina, the growth of other bacteria can cause vaginal infection. Vaginal discharge is often associated with bacterial vaginosis, which may be caused by a range of bacteria. Sexually-transmitted infections (STIs) with Neisseria gonorrhea and Chlamydia trachomatis bacteria (the bacteria that cause gonorrhea and chlamydia, respectively) may cause abnormal vaginal discharge.

Fungal infection

Yeast are normally found in the vagina, but if the pH of the vagina changes, the yeast can multiply far beyond their normal numbers. This is also more likely to occur after taking antibiotics.

Parasitic infection

The parasite Trichomonas vaginalis is not normally found in the vagina. It is almost always spread through sexual contact, but as this parasite is capable of surviving up to 24 hours in a moist environment, it can possibly be transmitted through wet towels or swimming clothes.

Less common causes

Risk factors

Some risk factors for developing abnormal vaginal discharge include:

  • Having multiple sexual partners;
  • Not using condoms during sexual contact;
  • Diabetes;
  • Any condition that weakens the immune system;
  • Intrauterine devices (IUDs);
  • Stress;
  • Use of antibiotics, and;
  • Use of oral contraceptives.

Signs and symptoms

Changes in the color or quantity of a vaginal discharge may prompt you to seek medical advice. It important for your doctor to correlate these changes with your menstrual cycle in order to determine whether they are normal.

Your menstrual cycle is not the only factor that determines changes of your vaginal discharge. Sexual activity, exercise and pregnancy are other very common causes of normal change to vaginal discharge.

Sometimes symptoms can be caused by overgrowth of normal flora or infection by parasites, yeasts or bacteria. These infections may cause a change in color, consistency and smell of your vaginal discharge.

Methods for diagnosis

Medical history and examination

To diagnose what is causing your abnormal vaginal discharge, your doctor may wish to take your detailed medical history. You may be asked questions such as:

Your doctor may also conduct a physical examination to inspect your vagina, vulva and cervix.

Diagnostic testing

Your doctor may take a swab during a physical examination to identify microbial growth. Depending on your age and sexual history, other tests could be carried out to check for the presence of sexually-transmitted infections. Your doctor may also consider performing a Pap test to check for abnormal cells.

A swab helps to assess the cause of vaginal discharge. 

Recurrent vaginal discharge

If vaginal discharge comes back several times, your doctor may suggest further diagnostic tests to check for an underlying medical condition that may be affecting your immune system, such as diabetes.

Types of treatment

The type of treatment used for vaginal discharge will vary depending on its suspected cause:

Vaginal discharge caused by infection

Vaginal discharge that is caused by an infection is treated with antibiotics, antifungal agents or a prescribed vaginal pessary cream.

Vaginal discharge caused by allergic vaginitis

Women who experience vaginal discharge and show no signs of abnormal microbial growth may have allergic vaginitis (contact dermatitis). Treatment for this condition usually involves avoiding the suspected irritant. Your doctor may prescribe a cream for symptomatic relief.

Potential complications

Chlamydia or gonorrhea infections, if left untreated, may progress to pelvic inflammatory disease, which can lead to other complications, including infertility.

Prognosis

The conditions that cause most cases of vaginal discharge respond well to treatment. Some cases of infection may return. Your doctor can discuss with you strategies to reduce your chance of recurring vaginal discharge.

Prevention

Once the cause of your vaginal discharge has been identified, there are strategies that may help prevent its recurrence. Some ways of reducing your risk of experiencing vaginal discharge may include:

References

  1. Assessment of Vaginal Discharge. Accessed August 14 2014. link here
  2. Thrush and Other Vaginal Infections Fact Sheet - Womens Health Queensland Wide. Accessed August 14 2014. link here
  3. Vaginal Discharge - Knowing the Difference between Normal Discharge and Infections - McKinley Health Center - University of Illinois. Accessed August 14 2014. link here
  4. Vaginal Discharge: 18 Causes Treatments Colors. Accessed August 14 2014. link here
  5. Vaginal Discharge: Check Your Symptoms and Signs Accessed August 14 2014. link here
  6. Vaginal Discharge: Check Your Symptoms and Signs. Accessed August 14 2014. link here
  7. What Is Normal Vaginal Discharge? - Watch WebMD Video. Accessed August 14 2014. link here

10 Most frequently asked questions (FAQs)

What is vaginal discharge?
In a normal, healthy vagina, glands in the vagina and cervix produce fluid that cleans the vagina, carrying away dead cells and bacteria and reducing the risk of infection. Changes in estrogen levels can change the nature of the vaginal discharge. Such changes can occur with pregnancy, ovulation, menopause or starting oral contraceptive medication ('the Pill').
What are the symptoms of vaginal discharge?
The symptoms of vaginal discharge may vary depending on the cause. They may include changes in the color of the discharge, changes in texture, an increase in the amount and frequency of the discharge, a strong and unpleasant odor, pain and itching around the vagina, pain during sex, and stomach pain.
What causes vaginal discharge?
The most common causes of vaginal discharge are allergic vaginitis (vaginal inflammation due to harsh soaps or cleaning gels), or bacterial, fungal or parasitic infections. Less common causes include: medications (including antibiotics, steroids and oral contraceptives), herpes simplex virus (HSV) infection, streptococcal vaginitis in adults, a foreign body (such as a tampon), atrophic vaginitis, cervical cancer and other cancers of the female reproductive system, and a vaginal fistula.
Who gets vaginal discharge?
Females of any age can develop vaginal discharge.
How is vaginal discharge diagnosed?
Your doctor will diagnose the cause of your vaginal discharge by asking you about your vaginal discharge and your health, including your sexual history.
How is vaginal discharge treated?
Depending on its cause, vaginal discharge treatment may involve antibiotics, antifungal agents, and/or changing the type of cleansing soap you use to clean the vaginal area.
Can vaginal discharge be prevented?
Some ways of reducing your risk of vaginal discharge may include: avoiding douching; when going to the bathroom, wipe from front to back to avoid contaminating your vagina with bacteria; choose underwear made from natural fibers, to avoid excessive sweating, and; practice safe sex to reduce the chance of acquiring sexually-transmitted infections.
What factors can trigger discharge?
Vaginal discharge can be triggered by an infection, allergic vaginitis, stress, medications including antibiotics, steroids and oral contraceptives, and having multiple sexual partners.
Can vaginal discharge be caught from sex?
Some of the causes of vaginal discharge are sexually-transmitted infections such as gonorrhea and chlamydia. The use of condoms during sex can limit the spread of these infections.
Is it safe to have sex with vaginal discharge?
During treatment for a vaginal infection, you may be advised by your healthcare professional to abstain from having sex, as it may further the spread of infection.

Related topics

Vaginal itching

Vaginal itching is experienced by many women and may be accompanied by vaginal discharge. There are many causes for vaginal itching. Generally, it is easily treated.

Pelvic inflammatory disease

Pelvic inflammatory disease, or PID, is the infection of a woman’s reproductive organs and surrounding pelvic tissues. It occurs most commonly when a sexually-transmitted infection spreads beyond the vagina to internal pelvic organs. This can lead to long-term complications if not recognised and treated early.

Bacterial vaginosis

Bacterial vaginosis occurs when there is an overgrowth of certain types of bacteria normally found in the vagina. It often causes a grey-coloured discharge. Although more common in sexually active women, bacterial vaginosis is not passed on through sexual activity.

Chlamydia

Chlamydia is a common sexually-transmitted infection (STI). Most people with chlamydia will not have symptoms, but others may experience pain when urinating, during intercourse, or have an abnormal discharge. If sexually active, it is important to get regular check-ups so it can be detected early and treated.

About this article

Title: Vaginal discharge

Author: Dr Nikki Wallis PhD, BSc

First Published: 22 Nov 2014

Last reviewed: 17 Jan 2022

Category: Information on Vaginal discharge

Average rating: 4.7 out of 5 (1556 votes)

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