Chapter 4 – The Vagina and Vulva

Bacterial vaginosis

Bacterial vaginosis (BV) is the most common cause of abnormal vaginal discharge in women of childbearing age worldwide.(1) It typically occurs in sexually active women, and is associated with douching, early age at first sexual intercourse, inconsistent condom use, higher number of sexual partners, or recent partner change. For women who have sex with women (WSW) bacterial vaginosis is associated with increased numbers of recent and past female partners and with confirmed bacterial vaginosis in a female partner.(2) BV is less common when male partners are circumcised.(2)

Bacterial vaginosis is a polymicrobial condition, characterised by an overgrowth of anaerobic organisms that replace normal lactobacilli, leading to an increase in vaginal pH (≥4.5). This may lead to an increase in vaginal discharge and a change in odour, often described as a fishy or ammonia-like smell. However, up to 50 per cent of women with BV are asymptomatic.(3)

Gardnerella vaginalis is the most commonly found bacteria in BV. Other organisms associated with BV include Atopobium vaginae, Prevotella species, Mycoplasma hominis and Mobiluncus species. Despite growing understanding of its physiology and sequelae, the precise pathogenesis of BV is controversial and its aetiology, pathology, microbiology and transmission are still poorly understood.(4) BV ... Buy now

Symptoms

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Diagnosis

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Amsel’s criteria

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Complications

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Management

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Recommended antibiotic treatment regimens for bacterial vaginosis

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Recurrent bacterial vaginosis

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Bacterial vaginosis in pregnancy

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Resources – Bacterial vaginosis

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