Gynaecology & Obstetrics Involution of uterus occurs at the rate of: September 2009 A 1.0 cm/day B 1.25 cm/day C 1.5 cm/day D 2.0 cm/day 💡 Explanation Involution of uterus occurs at the rate of: September 2009 ✓ Correct Answer: B. 1.25 cm/day