济南家政http://www.woai-wojia.com/介绍孕妇很可能遭遇或多或少、这样或那样的疼痛，腰背痛是妊娠期常见的症状。那么孕期腰背痛的原因都有哪些呢？
　　
1、济南家政谈到妊娠进入中晚期后，在胎盘分泌的激素作用下，骨盆中以往稳固的关节开始松弛、慢慢张开，脊柱、骨关节的韧带也开始松弛，为分娩做准备。这时，部分孕妈妈会觉得腰背疼痛。
After entering in Jinan housekeeping comes to pregnancy late in the hormones secreted by the placenta, pelvis stable joints in the past began to relax, and slowly open, spine, bone and joint ligaments began to relax, prepare for childbirth. At this time, some pregnant mothers will feel back pain.
　　
2、济南家政介绍随着妊娠月份的进展，子宫不断增大，身体重心渐渐向前移，在站立或走路时，为保持重心平衡，孕妈妈只能将身体后倾，而这种姿势加重了腰背部的韧带和肌肉的负荷，也会导致或加重腰背痛。
As the pregnancy progresses, Jinan housekeeping introduction of the month, the uterus is increasing, getting to the body center of gravity forward, standing or walking, in order to maintain a balanced center of gravity, the pregnant mother only after the dump body, and this increased the lower back posture ligaments and muscles of the load will cause or aggravate back pain.
　　
3、济南家政http://www.woai-wojia.com/介绍增大的子宫对腰背部神经的压迫，也是造成腰背疼痛的另一个原因。
Jinan housekeeping introduce increased uterine nerves of the lower back, are another cause of low back pain.