After the disappearance of the cervical canal, the uterine opening gradually dilates, and it takes about 6 to 12 hours until the uterine opening is complete.
After the cervical canal disappears, the uterine opening gradually dilates until it is 10 centimeters dilated, which is considered to be the full opening of the uterus.
This time varies from person to person. For primigravid women with a tight cervix and slow dilatation of the uterine orifice, full dilatation may take 11 to 12 hours. If the cervix is looser and the uterine opening dilates more quickly, the uterine opening will be complete in about 6 to 8 hours.
If the uterus does not dilate as expected, there may be abnormalities of the birth canal, weak contractions, abnormal fetal position, or cephalopelvic disproportion.
After the cervical canal disappears, you need to wait for labor in the delivery room, monitor the fetal heartbeat, and contact the midwife who observes the labor process or the doctor on duty if there is any abnormality. Consult your doctor for details.