Gynaecology & Obstetrics The pH ot vagina in adults is 1 A 3.5 - 4.5 B 4.5 - 5.5 C 5.5 - 6.5 D 6.5 5 7.5 💡 Explanation The pH ot vagina in adults is 1 ✓ Correct Answer: B. 4.5 - 5.5