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Consideration of Cultural Practices When Characterizing the Vaginal Microbiota Among African and African American Women

This manuscript considers intravaginal practices prevalent among African and African-American women, with the aim of providing a framework for how these practices may affect vaginal health and the vaginal microbiota, and consequently, impact pregnancy outcomes. Intravaginal practices are influenced by traditional socio-cultural beliefs and gender norms, with prominent practices including intravaginal insertion of substances (herbs and traditional medicines), intravaginal cleansing (douching), and anatomical modification of the female organs (labia elongation and female genital mutilation). Common motivations for such practices included hygiene, prevention of infection, enhancement of sexual pleasure, and compliance with societal or cultural norms. The use of soaps and other chemicals for vaginal douching has been reported to reduce diversity of the vaginal microbiota and lower pH, thus increasing the chances of bacterial vaginosis, but the evidence is minimal. The practice of vaginal insertion of natural or other substances is associated with physical abrasions, disruption of the vaginal flora, bacterial vaginosis, and HIV and other infections, but effects on pregnancy outcomes and the vaginal microbiota are unclear. Finally, female genital mutation has been reported to have immediate and prolonged physiological and psychological effects, including frequent infections and chronic inflammation, but similar to most other practices, consequences for preterm birth remain understudied and for the vaginal microbiota, unknown. Overall, findings identify the need for additional research, focusing on how these common practices influence both birth outcomes and the vaginal microbiota, so that nurses, midwives, physicians, and other providers worldwide are better equipped to assess and care for pregnant women.