目的:了解孕前体重指数(BMI)与孕期增重、产后42天体重恢复情况及影响产后体重恢复的因素。方法:采用方便取样,对产后42天复查的产妇进行回顾性调查。结果:①不同孕前BMI妇女孕期平均增重均大于12.50kg;②不同孕前BMI者产后42天体重均存在滞留现象,平均滞留7.50kg(中位数);③影响产后体重恢复的相关因素有孕前BMI、孕期增重、喂养方式等。结论:产后体重恢复受多种因素影响,针对这些相关因素指导妇女顺利渡过孕产期,促进产后恢复。 Objective: To understand the body mass index before pregnancy (BMI) and pregnancy weight gain, 42 days postpartum weight recovery and postpartum weight recovery factors. Methods: Convenient sampling was performed to review the 42-day postpartum maternal review. Results: (1) The average weight gain of pregnant women before pregnancy was higher than 12.50kg during pregnancy; (2) The body weight of pregnant women with different BMI before pregnancy were all retained for 42 days postpartum, with an average retention of 7.50kg (median); ③The factors influencing postpartum weight recovery were pre-pregnancy BMI, weight gain during pregnancy, feeding methods and so on. Conclusion: Postpartum weight recovery is affected by many factors. Guiding these related factors to guide women through the pregnancy stage and promote postpartum recovery smoothly.