Ministry of Health BC HealthFiles  


STD Series
BC HealthFile #08j, March 2005

Vaginitis
(Yeast Infections and Trichomonas)



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What is vaginitis?

Vaginitis is a name for a common infection in the vagina caused by different germs. Yeast and trichomonas are examples of germs that can cause vaginitis. The symptoms of vaginitis can vary depending on the germ. To find out if you have vaginitis, a nurse or doctor will need to examine you and take some tests.

What causes yeast infections and what are the symptoms?

Yeast infections are caused by the extra growth of certain yeast organisms that normally live in the vagina. This extra growth can be caused by many factors including, taking antibiotics or birth control pills, damp underwear, tight pants, poor diet, or use of certain vaginal products. Often, it happens for no clear reason. Yeast is not usually transmitted during sex with an infected person.

In women, the vagina will become very itchy and sore. Sometimes a cottage cheese-like discharge will appear. The vagina may become red and dry, which could make sexual intercourse painful. In men, there are generally no symptoms, but a rash may appear on the penis.

How is a yeast infection treated?

There are a number of ways to treat yeast infections. Treatment options include pills or creams, and ointments or tablets that are inserted into the vagina. Some treatments require a prescription and others can be bought at the pharmacy. If you are not sure that you have a yeast infection, it may be good to check with your doctor before you treat yourself.

Important: Women who repeatedly get yeast infections should see their doctor. This can occasionally be a sign of another disease.

What causes trichomonas and what are the symptoms?

Trichomonas is a germ that you can get by having sex with an infected person. Symptoms can include more vaginal discharge that may be yellow-green, the vagina may become sore and itchy, a strong vaginal odour, and pain during sexual intercourse or when going to the bathroom (urinate). If your main symptom is foul smelling discharge, please read about bacterial vaginosis in BC HealthFile #08g Bacterial Vaginosis.

Men often do not show any symptoms but may feel a slight burning feeling while passing urine, or see some fluid or redness at the end of the penis.

How is trichomonas treated?

Trichomonas is treated with antibiotic pills. The person(s) you have sex with should also be treated even if they have no symptoms.

Important: Do not have sex until after you and your partner(s) have finished the treatment.

Should I be tested for other sexually transmitted diseases (STDs)?

If you have different sexual partners, or if your partner has different partners, you should also be tested for gonorrhea, chlamydia, syphilis and HIV (the virus linked to AIDS). You should also consider getting vaccine shots to prevent hepatitis B infection.

Important: The more sexual partners you have, the higher your risk of getting a STD.

Birth control pills

Birth control pills may not work very well when you are taking some antibiotic pills. Keep taking your birth control pills while taking any medication, and also use a second form of birth control, such as a condom, until your next period after completing the antibiotics.

Ways to reduce your risk of getting a sexually transmitted disease

Important facts about condoms

Putting on a male condom

Putting on a female condom

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