Gynaecology & Obstetrics What is the pressure inside uterus during second stage of labour : A 100-120 mm of Hg B 200-220 mm of Hg C 300 - 400 mm of Hg D 25 mm of Hg 💡 Explanation What is the pressure inside uterus during second stage of labour : ✓ Correct Answer: A. 100-120 mm of Hg