Bone pain on both sides of the buttocks after pregnancy may be caused by increased pelvic pressure pressing on the sciatic nerve or calcium deficiency, which can be relieved by massage, hot compresses, calcium supplementation and other ways. With the increase of pregnancy weeks, the fetus gradually increases, the pelvic pressure and lumbar spine burden also gradually increased, compression to the sciatic nerve will cause bone pain on both sides of the buttocks, at this time, pregnant women should pay attention to avoid standing for a long time, sitting for a long time, appropriate activities, and promote the local blood circulation, but also through the massage, hot compresses to alleviate the way. On the other hand, after pregnancy, with the development of the fetus, the demand for calcium is further increased, if not supplemented in time, will cause osteoporosis, which in turn causes pain in the buttocks on both sides of the bone, at this time can be supplemented under the guidance of the doctor calcium supplements, such as calcium gluconate, calcium carbonate and so on. Pregnant women should pay attention to consume more food with high calcium content, appropriate activities, avoid overwork, if the pain in the buttocks on both sides of the bone is very serious, should consult a doctor in time, under the guidance of the doctor to take appropriate treatment.