The first month of pregnancy, back pain, common causes are the following: first, after pregnancy, a large amount of blood gathered around the uterus to supply embryonic nutrition, the body’s center of gravity will shift significantly, at this time, the lumbar vertebrae, ligaments, lumbar muscles and other load gradually increased, more than their own tolerance, will cause back pain, back pain symptoms, through local hot compresses, bed rest and lumbar back muscle functional exercise, can relieve back pain, back pain Secondly, pregnant women often need to consume a lot of nutrients after pregnancy, resulting in excessive fat accumulation and weight gain, which can cause excessive back load and lead to low back pain symptoms, so a reasonable choice of nutrients and avoiding the intake of large amounts of carbohydrates can reduce fat accumulation and thus relieve low back pain symptoms.