Conclusion: Mean weight retention at sixth weeks postpartum in Thai singleton pregnancy with
normal pre-pregnancy BMI was 4.99 ± 4.03 kg. The recommendation for the optimal
gestational weight gain, absolute breastfeeding and the appropriate nutrition after delivery
and the suggestion of weight reduction at postpartum visit are the important issues which the
obstetricians should be concerned.
Keywords: postpartum weight retention, pre-pregnancy BMI, postpartum BMI