Overnutrition of female friends during pregnancy may lead to postpartum obesity. It is generally recommended to lose weight after childbirth, especially during lactation, and do not choose dieting to lose weight, so as to avoid malnutrition leading to lack of milk. There are many ways to lose weight after giving birth. After giving birth, you can choose fitness exercise and yoga exercise to lose weight healthily. Usually your diet is mainly high-protein and low-fat foods, such as milk, eggs and beef. You should exercise as much as possible and eat more fresh fruits and vegetables. It is suggested that pregnant women should also try to control their diet, and should not overeat because of pregnancy, leading to postpartum obesity.