| Objective To assess the bone mineral density (BMD) in puerperium women with normal BMD in early pregnancy, and to analyze the effect of factors in antenatal, intrapartum, and postpartum on BMD in puerperium. Methods A total of 210 puerperium women with normal BMD in early pregnancy in Haidian Maternal and Child Health Hospital were documented and ultrasound bone densitometer was used to measure the BMD of the distal radius. The effect of body weight index (BMI), weight gain in gestation, delivery mode, fetus weight, postpartum hemorrhage, feeding pattern, postpartum calcium supplement, and outdoor activities in postpartum on puerperium BMD were analyzed. Results In all the women, normal BMD accounted for 90.5%, osteopenia and osteoporosis accounted for 9.5% and 0%, respectively. BMD in puerperium was lower than that in early pregnancy, and the difference was statistically significant (P<0.05). The women with postpartum hemorrhage more than 500mL, weight gain in gestation more than 12.5kg, no postpartum calcium supplement, and less postpartum outdoor activities had lower BMD, and the difference was statistically significant (P<0.05). BMI, delivery mode, fetus weight, and feeding pattern had no effect on BMD in puerperium. Conclusion BMD in puerperium is lower than that in early pregnancy. Proper weight gain in gestation, postpartum calcium supplement, and postpartum outdoor activities reduce osteopenia. |