The main reason for spinal pain in pregnant women is that as the uterus grows rapidly in the middle and late stages of pregnancy, the center of gravity of the pregnant woman will shift forward, resulting in the muscles of the low back must maintain a certain tension, so that the upper body to maintain a backward posture, and therefore easy to cause low back pain, and may even involve the nerves near the neck and shoulder joints, resulting in upper limbs soreness and weakness. Pregnant women should wear flat shoes to reduce the pressure on the spine. Second, calcium deficiency In addition, this condition may also be due to calcium deficiency, because the fetus needs sufficient nutrition for growth, calcium is indispensable, the fetus will compete with the mother for calcium, resulting in calcium deficiency in the mother, causing bone pain, so it must be timely calcium supplementation. Third, what should I do if I have low back pain? Pregnant women should go to a regular hospital to receive treatment when the pain in the lower back is serious, and should not be treated blindly by themselves. It is advisable not to lift heavy objects when standing, and to use your hands to support yourself when changing your posture to reduce the load on your lower back, and not to climb stairs. Pregnant women who need to stand or walk for a long time can use a lap belt. In addition, you can also reduce the symptoms of low back pain by strengthening your low back muscles with exercises.