The growth of double chorionic twins is inconsistent. At present, the diagnostic criteria for twin growth inconsistency are not uniform, American College of Obstetricians and Gynecologists ( ACOG) It is recommended that the difference in birth weight between the two fetuses is 15% ~ 25% are twin growth inconsistencies. Canadian College of Obstetricians and Gynecologists ( SOGC) The view is that the difference between the abdominal circumference of the two fetuses is more than 20 mm or the difference between the estimated weight of the fetus is more than 20%, which means the growth of the twins is inconsistent. Royal College of Obstetricians and Gynecologists ( RCOG) defines the range of twin growth inconsistency as the difference between the estimated Read More …