The vast majority of women begin to experience weight loss about two months after giving birth. Because blood volume is increased during pregnancy, excess blood volume is removed by sweating during the puerperium. In addition, as estrogen decreases, the water and sodium retention in the body is gradually relieved, so weight loss basically occurs naturally after the postpartum physiological recovery period. The postpartum physical recovery period is 56 days, and the process of gradual weight loss will occur after 56 days. In addition, it is also recommended to give more nutrition in the diet after delivery. Because of the need to breastfeed, but nutrition should be balanced, not large fish and meat too greasy, which will also make weight loss relatively difficult.