It is inaccurate to say that back pain in early pregnancy is prone to fetal abortion. There are more reasons for backache in early pregnancy, which may be physiological or caused by pathological reasons. Physiological lumbago generally has no effect on fetal development, but if it is pathological lumbago, fetal abortion may occur. I. Physiological lumbago After pregnancy, the level of estrogen and progesterone in the body rises rapidly, which will lead to relaxation of the pelvic ligament muscles, thus easily triggering lumbago; on the other hand, the uterus keeps increasing in early pregnancy and presses on the lumbosacral area, which will also lead to lumbago. The above two conditions cause lumbago in early pregnancy, which usually does not cause fetal arrest. Second, pathological lumbar acidity 1, lumbar spine disease caused by lumbar acidity: generally will not affect the development of the fetus, will not cause fetal arrest. Pregnancy has a certain impact on the lumbar spine, sleep more on hard beds in daily life to reduce the pressure on the intervertebral discs, you can follow medical advice to take non-surgical treatment, such as traction therapy, bed rest, massage therapy, etc.; 2, lumbago caused by endometritis, nephritis: if the lumbago is caused by endometritis, nephritis, it may lead to abnormal embryonic development, which may lead to fetal arrest. Patients are advised to seek medical attention in time to clarify the specific situation. Generally speaking, simple lumbago in early pregnancy is normal. If lumbago is accompanied by other abnormalities, it is recommended to go to the hospital for corresponding examination in time to clarify the cause and treat the cause.