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Influenced by traditional Chinese customs, excessive tonic and reduced exercise during pregnancy and postpartum often lead to postpartum weight retention, which eventually develops into overweight and obesity. Experts from the Department of Clinical Nutrition at Shunyi Women and Children's Hospital pointed out that the postpartum period is an important window period for preventing obesity in women. It is of great significance to the lifelong health of pregnant women and their offspring to clarify the causes of postpartum weight retention and intervene in controllable factors as early as possible.

First, let’s understand what postpartum weight retention is:

Postpartum weight retention (PPWR) refers to a postpartum body mass index (BMI) greater than pre-pregnancy weight, and ≥5 kg is considered a large amount of PPWR. PPWR can lead to an increased risk of overweight and obesity in women in the short term (0-3 years) and long term (7-21 years), chronic diseases such as type 2 diabetes, hypertension, heart disease, hyperlipidemia, etc., and even lead to adverse outcomes of subsequent pregnancies, such as preeclampsia, gestational diabetes, stillbirth, congenital anomalies, etc. Studies have shown that the average weight retention of women 6 months after delivery is 1.56-4.1 kg, and the weight retention 1 year after delivery is 0.5-1 kg.

What are the reasons for postpartum weight retention?

1. Body mass index (BMI) before pregnancy: Women with a low BMI before pregnancy are worried that pregnancy will be detrimental to fetal development and affect milk secretion after delivery, so they pay special attention to nutritional intake during pregnancy. Excessive weight gain may cause weight retention after delivery. Women who are overweight or obese before pregnancy may also cause weight retention after delivery.