Many mothers after giving birth to a baby will have pain in the buttock bone, resulting in this situation is mainly due to the following reasons: 1, due to long-term compression of the uterus during pregnancy. 2, and the delivery of the pregnant woman’s whole body to exertion. 3, in the post-partum pregnant women in the body of the hormone level changes significantly, the hormone level changes can also lead to buttock pain. For this situation, it is recommended to sleep on a hard board bed, tie the abdominal band, but also appropriate supplement a little calcium tablets, usually pay attention to their own rest.