Today\’s study – the reasons for \”low back pain\” in late pregnancy 1. As the fetus in the belly continues to grow in the third trimester, the burden on the abdomen gradually increases, and the body\’s center of gravity shifts backward. In order to maintain the balance of the body, pregnant mothers The upper body will tilt back compensatoryly, causing excessive lordosis of the spine, and continuous tension in the extensor muscles of the waist and back, causing excessive fatigue of the waist and back, and easily lead to back pain. …