Gynaecology & Obstetrics True about presence of bacteria in female reproductive tract is all except A Anaerobes predominate and outnumber aerobic species. B Upper reproductive tract is sterile. C Function of vaginal bacterial colonization is unknown. D Presence of bacteria does not indicate active infection. 💡 Explanation True about presence of bacteria in female reproductive tract is all except ✓ Correct Answer: B. Upper reproductive tract is sterile.