It usually takes 8~12 months to regain the pre-pregnancy weight after delivery. In general, you can gradually lose weight and fat 3 to 6 months after the birth of your child, and after 8 to 12 months, your weight will be significantly reduced and gradually return to your pre-pregnancy weight. Especially between 8 and 12 months, it is possible to lose weight and return to normal weight. After delivery, due to changes in the body’s endocrine environment, there will be a large amount of sweating and excretion, resulting in a substantial reduction in body fluids, which will lead to a significant reduction in body weight. Weight loss may be faster between 7 and 12 days after delivery, and during breastfeeding, regular breastfeeding will also promote weight loss. Postpartum weight loss must be scientific in order to ensure lactation, and medical attention should be sought in case of discomfort.