The first thing that needs to be ruled out is early pregnancy. For women who have recently had sex, early pregnancy test paper and blood HCG test can be used to confirm the diagnosis; the second consideration is lumbar diseases, such as lumbar muscle strain, lumbar disc protrusion, lumbar spinal stenosis, etc. If necessary, go to the hospital for lumbar spine MRI to make a clear diagnosis; the last consideration is gynecological diseases, such as acute and chronic pelvic inflammatory disease, uterine fibroids, ovarian cysts, etc, Lastly, gynecological diseases such as acute and chronic pelvic inflammatory disease, uterine fibroids, ovarian cysts, etc. should be diagnosed by gynecological examination or ultrasound. In addition to the above organic lesions, long-term menstrual disorders may also be due to long-term menstrual disorders, which may be related to recent mental stress, work strain, cold, etc.