Low back pain during pregnancy is a very common problem, and some pregnant women also suffer from lumbar disc herniation during pregnancy and delivery. Therefore, moderate exercise during pregnancy is necessary to increase the strength of the muscles and ligaments of the low back and to strengthen the protection of the lumbar spine. The long October pregnancy is a big project for the mother-to-be. When the fetus grows gradually and the pregnant woman’s belly bulges, it will change the body’s center of gravity and increase the lumbar spine flexion, and this change in the line of force is a great threat to lumbar herniated discs; coupled with the body’s hormonal changes in pregnancy, the lumbar muscles and ligaments will further loosen up, and the protection of the lumbar vertebrae will further decrease, so the risk of lumbar herniation will also increase during the process of pregnancy. The risk of lumbar disc herniation with pregnancy is also increasing; of course, some pregnant women lack exercise and continue to rest and recuperate after pregnancy, the lumbar muscles are not strong enough to fight against the increased burden is also a potential risk. For you to show the pregnant women to fight against low back pain during pregnancy can do the four exercise movements. 1, back stretching training: first legs apart, sit on your knees, stretch to the front and feel the power of stretching along the crest. If necessary, you can put a small pillow in the abdomen to support. 2, leg extension training: standing position, one foot on the chair, keep the foot straight position, to the front of the body feel the thigh back stretching power. If you can’t stand or the knee can’t flex, it can be a shorter chair. 3, chest stretching training: standing position to keep the head and back straight, back over the hand but do not lean forward, slowly up and down to stretch the arm, you can feel the shoulder and upper arm stretching power. 4, neck extension training: standing position or sitting position, head from turning to one side, jaw toward the direction of the collarbone, maintain this action for 30-60 seconds, and then do the other side.