Caudal spine pain is often experienced after delivery, which is generally normal and is usually caused by the fetal head pressing on the caudal vertebrae during delivery. The sacrococcygeal joint between the caudal vertebra and the sacrum is generally mobile, and when the child is delivered, the caudal vertebra is pressed against the caudal vertebra, and when the sacrococcygeal joint is mobile, the caudal bone opens up and the child’s head can pass through the pelvic outlet without difficulty. If the sacrococcygeal joint is fixed, hard and the tailbone is upturned, it will affect the delivery of the baby to some extent. Sometimes too much force or help from the midwife can cause a mild fracture of the sacrococcygeal joint, which is a normal condition to help the delivery. This minor fracture can cause great pain in the sacrococcygeal joint. Generally speaking, sacrococcygeal joint pain does not require treatment or topical medication for bone and joint pain can be applied.