The causes of low back pain in women are mainly considered as follows: 1, lumbar muscle strain or myofasciitis of the low back. Commonly seen in patients who sit for long periods of time or suffer from cold or strain, manifesting only as pain in the lower back, restricted bending activities, no lower limb numbness and weakness, and localized high signals at the muscle level can be seen on MRI. 2. Lumbar disc herniation. Patients with lumbar disc herniation not only have low back pain, but also numbness and weakness in the lower limbs, mainly due to nerve compression by the herniated disc, which can be clearly identified by magnetic resonance examination. 3. urinary stones. The pain is often sudden, with paroxysmal colic, and some patients have hematuria, mainly due to stones in the kidney entering the ureter, causing pain caused by ureteral blockage spasm, which can be clarified by ultrasound or CT examination. 4. Chronic ureteritis. For gynecological diseases, especially inflammation of the fallopian tubes, the stimulation of inflammation can also lead to pain in the lower abdomen, which can be clearly diagnosed through ultrasound and laboratory tests.