The reasons for lumbar pain caused by prolonged sitting in early pregnancy are as follows: first, excessive strain on the lumbar muscles, prolonged sitting and other fixed positions can increase the load on the lumbar muscles, which can easily cause inflammatory changes such as lumbar muscle strain, internal congestion and edema of the lumbar muscles, decreased muscle compliance and decreased mobility, which can lead to lumbar pain symptoms, which can be quickly relieved by local massage and hot compress treatment Lumbar pain symptoms. Second, lumbar disc bulge, adult lumbar disc nucleus pulposus will gradually dehydrated, degenerative changes in the intervertebral disc, partial fracture of the fibrous ring will occur, the uterus is filled with blood after pregnancy, the center of gravity shifts forward leading to increased load on the lumbar intervertebral disc, which can easily cause lumbar disc bulge induced lumbar pain symptoms. The treatment is mainly based on bed rest, and the symptoms can be significantly relieved after 3-4 weeks.