The symptoms of lumbar pain in the early stage of pregnancy: 1, it may be because the pregnant woman herself has potential lumbar disc herniation, and because of the lumbar muscle strain caused by overwork after pregnancy, walking more, or aggravate the symptoms of lumbar disc herniation and lead to symptoms of pain. 2, it may be because of the pelvic cavity has a chronic inflammation, or cervical chronic inflammation, or the reproductive system has a chronic inflammation, which may lead to symptoms of back pain in the early stage of pregnancy. The symptoms of back pain can be caused by chronic inflammation of the pelvis, the cervix, or the reproductive system. 3, after pregnancy, the uterus is tilted backward and flexed, the uterus increases against the posterior peritoneum and leads to back pain, it is recommended to change the position of the body to sleep, and after correcting the position of tilted backward and flexed, the symptoms will be much more relieved.