Low back pain after intercourse is a relatively common clinical symptom, and the common causes include: 1. abnormal position of the uterus, which is posteriorly tilted and retroflexed, and during intercourse, the uterus is congested and stimulates the pelvic cavity causing low back pain; 2. cervical lesions such as cervical hypertrophy, cervical polyps, cervical erosion, etc., and during intercourse, stimulation causes cervical congestion and low back pain; 3. chronic pelvic inflammatory disease, ovarian cysts, uterine fibroids and other diseases, which can also cause abdominal pain and low back pain after intercourse. When suffering from chronic pelvic inflammation, ovarian cysts, uterine fibroids and other diseases, abdominal pain and low back pain will be caused by congestion in the uterus and pelvis after intercourse; 4. Some women with intrauterine device placed in the uterus will experience low back pain after intercourse; 5.