Women with caudal spine pain after childbirth is mostly a normal physiological phenomenon caused after childbirth, which is related to pregnancy via pubic delivery or poor recovery of pelvic floor function after childbirth.1. It may be due to the activity and posterior extension of the sacrococcygeal joint during the process of childbirth, which may have a small amount of damage.2. It may also be due to factors such as calcium deficiency in women after childbirth, which may also lead to caudal spine pain. Therefore, if women have caudal spine pain after childbirth, they should pay attention to appropriate bed rest and give symptomatic treatment such as increasing nutrition and taking oral calcium tablets. If the pain cannot be relieved after symptomatic treatment, painkillers and pain cream can also be given to relieve the pain. After the postpartum period has been prolonged, tailbone pain will be relieved after proper rest, physiotherapy and oral medication.