Women in a month of pregnancy mild back pain, no other discomfort can be relieved by bed rest, when the back pain is strong treatment: first, women need to bed rest, waist to give moderate massage and hot compresses will play a certain role in relief. Second, if the treatment does not relieve, women had better go to the hospital for examination, blood test blood HCG, progesterone and gynecological ultrasound, if there is no pre-eclampsia, only the performance of lumbar pain is very strong, can be given under the guidance of the doctor corresponding drugs for treatment. Thirdly, after the examination, if there is pre-eclampsia, women need to give progesterone or HCG drugs for fetal preservation treatment, and then do observation treatment.