There are several possible causes of back pain in women after sitting: first, lumbar disc protrusion, lumbar disc protrusion can occur after sitting back pain, is due to the protruding disc after sitting, compression of the nerves around the disc and cause back pain, to early examination of lumbar disc CT, nuclear magnetic, to early diagnosis and treatment. Second, lumbar dorsal myofasciitis, lumbar dorsal myofasciitis is often caused by exertion, cold, can appear after sedentary back pain, early examination to early diagnosis. Third, lumbar muscle strain, lumbar muscle strain can also appear after sitting for a long time lumbar muscle pain symptoms, can have morning pain aggravated, to early physical examination and examination, to exclude other diseases to diagnose. Fourth, kidney deficiency, kidney deficiency can also appear after prolonged sitting lumbar pain, lumbago, accompanied by weakness of the knees, to early diagnosis to the Chinese medicine department pulse, early oral kidney medicine to treat.