During the postpartum period, women’s bodies are weaker, plus the body will change during labor or pregnancy, which will lead to pain in the legs, the common causes are as follows: 1, calcium deficiency leads to leg pain, because the fetal development during pregnancy and postpartum breastfeeding demand for calcium is relatively large, so it will cause calcium deficiency, leading to pain in the legs. 2, the labor process leads to damage to the maternal hip muscles, which will lead to pain in the legs after delivery. 3, if the postpartum period is more strenuous or cold, it will lead to aseptic inflammation of muscles and fascia, blood stagnation also leads to leg pain, this pain generally leg appearance is not abnormal, and there is no pressure pain, but there will be pain when moving, can be relieved by heat.