Pregnant women’s buttock pain may be caused by uterine compression, local ligament laxity, etc., can be relieved by hot massage, appropriate exercise and other help. 1. Uterine compression: after pregnancy, with the increase of the uterus, the local pelvic organs and muscles will cause compression. If women are inactive for a long time, it is easy to cause lumbosacral pain and discomfort, at this time, you can help relieve the symptoms of appropriate exercise. 2. Local ligament relaxation: after pregnancy, due to the rise in estrogen and progesterone levels in the body, it will lead to local pelvic floor ligament relaxation. At this time, it is easy to cause pain and discomfort at the lumbosacral caudal joint ligaments. This situation can be appropriate hot compresses, and give local massage to help relieve. Women should pay attention to regular maternity checkups during pregnancy, and if at any time there is low back pain, abdominal pain, abnormal vaginal bleeding, etc., it is important to seek medical attention as soon as possible.