Pregnant women during pregnancy due to nerve compression, muscle tension, increased body burden will appear back pain, you can change the sitting and sleeping posture, massage, hot compresses and other methods to relieve. 1. Nerve compression: women in pregnancy, especially in late pregnancy, the increasing uterus will compress the lumbar vertebrae and the surrounding nerves, resulting in back pain, pregnant women can properly change the sitting and sleeping positions to relieve the symptoms of low back pain, you can sit or sleep in the lumbar region to put a soft cushion. 2. Muscle tension: women in pregnancy symptoms of back pain, may also be due to muscle tension in the lumbar back, you can properly massage the lumbar back to relieve the symptoms of back pain, but also timely changes in position, to avoid the same position for a long time leading to muscle tension in the lumbar region. 3. Increased body burden: women in pregnancy, due to the continuous growth of the fetus, will make women’s body burden more and more heavy, resulting in pregnant women with back pain symptoms, hot compresses can promote local blood circulation, to a certain extent, to relieve the symptoms of back pain. Pregnant women who experience back pain during pregnancy, after changing sleeping and sitting postures, as well as localized hot compresses and other methods did not relieve or accompanied by other symptoms, it is recommended to go to the hospital in a timely manner, to clarify the cause of targeted treatment.