Ogino Mitsuharu, Iino Koichi, Minoura Shigeki
Department of Obstetrics and Gynecology, Toyama Hospital, International Medical Center of Japan, Shinjuku-ku, Tokyo, Japan.
J Obstet Gynaecol Res. 2010 Oct;36(5):1071-4. doi: 10.1111/j.1447-0756.2010.01286.x.
Warm-water cleaning toilets, or ‘bidet toilets’, are one of the most popular household goods in Japan. However, a recent large-scale survey raised questions about the relationship between bidet toilet use and bacterial vaginitis as reflecting bacterial vaginosis with inflammation. Recently, gynecologists have expressed concerns about the increase in aggravated vaginal microflora in habitual bidet users. Therefore, the present study was designed to clarify the possible relevancy of bidet usage to changes in vaginal microflora.
Two hundred and sixty-eight non-pregnant women of reproductive age, with an increase in vaginal discharge, consented to enter the study. On outpatient visit, an aliquot of cervicovaginal secretion was obtained by a sterilized cotton swab and cultured using standard culture systems.
Normal microflora (Lactobacillus species) was not present in 42.86% of bidet toilet users, compared to 8.77% of non-users. Fecal bacteria were detected in 50 of the 268 cases (18.66%), 46 cases in users (92%) and only 4 cases in non-users (8%). Contamination by other pathogens was 4 to 6 times higher in users than in non-users.
Habitual use of bidet toilets aggravates vaginal microflora, either by depriving normal microflora or facilitating opportunistic infection of fecal bacteria and other microorganisms.
温水清洁马桶，即“坐浴盆马桶”，是日本最受欢迎的家居用品之一。然而，最近一项大规模调查对坐浴盆马桶的使用与细菌性阴道炎（反映伴有炎症的细菌性阴道病）之间的关系提出了疑问。最近，妇科医生对习惯性使用坐浴盆马桶的女性阴道微生物群恶化增加表示担忧。因此，本研究旨在阐明使用坐浴盆与阴道微生物群变化之间可能存在的相关性。
268名有阴道分泌物增多症状的育龄非孕妇同意参与本研究。门诊就诊时，用无菌棉签获取宫颈阴道分泌物的一份样本，并使用标准培养系统进行培养。
42.86%的坐浴盆马桶使用者不存在正常微生物群（乳酸杆菌属），相比之下，非使用者中这一比例为8.77%。268例中有50例（18.66%）检测到粪便细菌，其中使用者中有46例（92%），非使用者中仅4例（8%）。使用者被其他病原体污染的几率比非使用者高4至6倍。
习惯性使用坐浴盆马桶会使阴道微生物群恶化，其方式要么是剥夺正常微生物群，要么是促使粪便细菌和其他微生物发生机会性感染。
