A vaginal yeast infection is caused by a yeast fungus called
Candida. While yeast is common in the vagina, it can cause irritating symptoms when it grows excessively.
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Yeast grows in conditions that are less acidic. Vaginal fluids are most often mildly acidic, but this can change. For example, acid levels can decrease during menstrual flow. "Good" bacteria also help keep vaginal secretions acidic and keep yeast levels in check. Conditions that decrease the good bacteria will also increase the chance of a yeast infection.
Factors that can increase your chance of a yeast infection include:
Situations that can cause hormonal changes (eg,
birth control pills,
menopause, steroid use)
Broad-spectrum antibioticsDiabetes, especially when blood sugar is not well-controlled
A compromised immune system (eg,
Perfumed feminine hygiene sprays, deodorant tampons, or bubble bathTight jeans, synthetic underwear, or a wet swimsuitDouching
Tell your doctor if you have any of these symptoms:
Vaginal itching, ranging from mild to severeA clumpy, vaginal discharge that may look like cottage cheeseVaginal soreness, irritation, or burningRash or redness on the skin outside the vaginaPainful urinationPainful sexual intercourse
Your doctor will:
Ask you about your medical history and your symptomsDo a pelvic examTest vaginal discharge
It is important to see a doctor the first time you have symptoms. Other vaginal infections may have symptoms similar to a yeast infection. These can include
If you have been diagnosed with a yeast infection, you may be able to recognize the signs of a new infection. In this case, it is safe to use over-the-counter medicine. Talk to your doctor if you are unsure.
Various antifungal medicines are available as intravaginal creams, suppositories, and oral medicine. Some examples include:
Miconazole nitrate (Monistat)Clotrimazole vaginal (Gyne-Lotrimin)Butoconazole vaginal (Fem-stat)Terconazole vaginal (Terazol)Clotrimazole vaginal (Mycelex)Fluconazole (Diflucan)
If you are diagnosed with a yeast infection, follow your doctor's
To help reduce your chance of getting a yeast infection, take the following steps:
Dry the outside vaginal area thoroughly after a shower, bath, or swim.Change out of a wet bathing suit or damp workout clothes as soon as possible.Wear cotton underwear.Avoid tight-fitting clothing.Don't douche unless your doctor tells you to do so; it decreases vaginal acidity.If you have
diabetes, try to control your blood sugar.Avoid bubble baths, perfumed feminine hygiene sprays, and scented soap.Avoid frequent or prolonged use of antibiotics if possible.
Last reviewed September 2012 by Andrea Chisholm
Please be aware that this information is provided to supplement the care provided by your physician. It is neither intended nor implied to be a substitute for professional medical advice. CALL YOUR HEALTHCARE PROVIDER IMMEDIATELY IF YOU THINK YOU MAY HAVE A MEDICAL EMERGENCY. Always seek the advice of your physician or other qualified health provider prior to starting any new treatment or with any questions you may have regarding a medical condition.
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