濟(jì)南家政介紹孕婦很可能遭遇或多或少、這樣或那樣的疼痛，腰背痛是妊娠期常見(jiàn)的癥狀。那么孕期腰背痛的原因都有哪些呢？
　　
1、濟(jì)南家政談到妊娠進(jìn)入中晚期后，在胎盤分泌的激素作用下，骨盆中以往穩(wěn)固的關(guān)節(jié)開(kāi)始松弛、慢慢張開(kāi)，脊柱、骨關(guān)節(jié)的韌帶也開(kāi)始松弛，為分娩做準(zhǔn)備。這時(shí)，部分孕媽媽會(huì)覺(jué)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、濟(jì)南家政介紹隨著妊娠月份的進(jìn)展，子宮不斷增大，身體重心漸漸向前移，在站立或走路時(shí)，為保持重心平衡，孕媽媽只能將身體后傾，而這種姿勢(shì)加重了腰背部的韌帶和肌肉的負(fù)荷，也會(huì)導(dǎo)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、濟(jì)南家政介紹增大的子宮對(duì)腰背部神經(jīng)的壓迫，也是造成腰背疼痛的另一個(gè)原因。
Jinan housekeeping introduce increased uterine nerves of the lower back, are another cause of low back pain.