The reasons for postpartum weight loss may be related to dietary factors, lack of exercise and psychological factors. 1. Dietary factors: postpartum women may eat more high-calorie food in order to breastfeed, daily food intake calories than the body’s consumption of calories, fat accumulation, resulting in postpartum weight loss. 2. Lack of exercise: postpartum women’s bodies are weaker, always bed rest, lack of exercise, resulting in the body to consume fewer calories, is also one of the reasons why the postpartum weight does not come down. 3. Psychological factors: postpartum stay at home for a long time to take care of the baby may be mentally stressed, long time in a state of mental depression, poor quality of sleep at night, by the influence of these factors, causing the body endocrine disorders, will also be postpartum weight can not come down. There are many reasons for postpartum weight loss, so you should go to the hospital for examination.