In general, the absence of a cervical canal is not an indicator for cesarean section, but can be an indication for cesarean section if it does not improve with treatment. Indicators for cesarean section generally include pelvic stenosis, abnormal fetal position, placenta praevia, placental abruption, etc. Failure of the cervical canal to disappear is not a strict indicator. Failure of the cervical canal to disappear is defined as a hard cervix that does not soften after labor, mostly due to the pregnant woman’s history of cervical treatment. The cervical canal usually disappears near the due date in preparation for labor. However, if labor is imminent and the cervical canal still has not disappeared and the cervix is hard, the doctor will usually use misoprostol tablets or prostaglandin E2 suppositories to soften the cervix, and if the state of the cervix does not improve significantly after treatment, then the cervical canal has not disappeared will be known as an indicator for cesarean section. Therefore, if the cervical canal has not disappeared during the labor examination, pregnant women are advised not to worry too much, and to pay close attention to the fetal heart and amniotic fluid changes, and generally the cervical canal will disappear gradually and the cervix will be softened gradually. If the cervical canal has not disappeared after labor, the doctor will treat the symptoms, but when there is still no significant improvement after treatment, it will be called an indicator of cesarean section.