Cervical enlargement means that the volume of the cervix will increase compared with the normal volume of the cervix, which is commonly caused by the following reasons: firstly, due to chronic inflammation of the cervix, when the cervix has chronic inflammation, the cervix will have tissue hyperplasia under the stimulation of long-term chronic inflammation, so its volume will increase, and clinically, it is often accompanied by pain in the lumbosacral region. Secondly, localized fibroids in the cervix will lead to cervical enlargement, which can be clinically diagnosed by ultrasound and clinically manifested as an increase in menstrual flow. Thirdly, cervical hypertrophy, because in clinical cervical cysts can lead to cervical enlargement, if the cysts are relatively large, it is recommended that surgical treatment.