The tailbone pain of pregnant women is usually caused by the compression of the tailbone, because the weight of pregnant women will gradually increase while the gestational week gradually increases, and because the fetus gradually increases, the uterus will also compress the lumbar spine, resulting in the straightening of the physiological curvature of the lumbar spine. After the physiological curvature of the lumbar spine is straightened, the toughness of the lumbar region will decrease, and if you often sit for a long time, especially on a hard stool, the tailbone will rub against the hard stool leading to sterile inflammation, which will lead to pain in the tailbone of pregnant women. Patients are advised to avoid prolonged sedentary periods and can choose to use soft cushions on the buttocks to relieve the symptoms, and this tail heel pain will be relieved after the birth of the child, as there are no other medications available for pregnancy.