Gynaecology & Obstetrics To say twin discordance the difference in the two twin’s weight should be: A 15% with the larger twin as index B 15% with the smaller twin as index C 20% with the larger twin as index D 25% with the smaller twin as index 💡 Explanation To say twin discordance the difference in the two twin's weight should be: ✓ Correct Answer: C. 20% with the larger twin as index