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Vaginal yeast infection, also known as candidal vulvovaginitis and vaginal thrush, is excessive growth of yeast in the vagina that results in irritation.〔 The most common symptom is vaginal itching, which may be severe. Other symptoms include burning with urination, white and thick vaginal discharge that typically does not smell bad, pain with sex, and redness around the vagina.〔 Symptoms often worsen just before a woman's period.〔 Vaginal yeast infections are due to excessive growth of ''Candida''. These yeast are normally present in the vagina in small numbers.〔 It is not classified as a sexually transmitted infection; however, it may occur more often in those who are frequently sexually active.〔〔 Risk factors include taking antibiotics, pregnancy, diabetes, and HIV/AIDS.〔 Eating a diet high in simple sugar may also play a role.〔 Tight clothing, type of underwear, and personal hygiene do not appear to be factors. Diagnosis is by testing a sample of vaginal discharge. As symptoms are similar to that of the sexually transmitted infections, chlamydia and gonorrhea, testing may be recommended.〔 Despite the lack of evidence, wearing cotton underwear and loose fitting clothing is often recommended as a preventative measure.〔〔 Avoiding douching and scented hygiene products is also recommended.〔 Treatment is with an antifungal medication. This may be either as a creams such as clotrimazole or with oral medications such as fluconazole. Probiotics have not been found to be useful for active infections. About 75% of women have at least one vaginal yeast infection at some point in their lives while nearly half have at least two.〔 About 5% have more than three infections in a single year. It is the second most common cause of vaginal inflammation after bacterial vaginosis. == Signs and symptoms == The symptoms of vaginal thrush include vulval itching, vulval soreness and irritation, pain or discomfort during sexual intercourse (superficial dyspareunia), pain or discomfort during urination (dysuria) and vaginal discharge, which is usually odourless. This can be thin and watery, or thick and white, like cottage cheese. As well as the above symptoms of thrush, vulvovaginal inflammation can also be present. The signs of vulvovaginal inflammation include erythema (redness) of the vagina and vulva, vaginal fissuring (cracked skin), edema (swelling from a build-up of fluid), also in severe cases, satellite lesions (sores in the surrounding area). This is rare, but may indicate the presence of another fungal condition, or the herpes simplex virus (the virus that causes genital herpes).〔 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Vaginal yeast infection」の詳細全文を読む スポンサード リンク
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