How long does it take for the cervix to disappear?

There is no fixed correlation between the time of disappearance of the cervical canal and the specific time of birth, so it is impossible to accurately predict how long labor will take.

Generally speaking, disappearance of the cervical canal is a sign of progress in labor, but it does not mean that labor will occur immediately. After disappearance of the cervical canal, the cervical opening will gradually expand until it is large enough to allow the fetus to pass through. This process may take several hours to several days, depending on the physical condition of the pregnant woman and the progress of labor.

If the cervical canal has disappeared, the pregnant woman should be patient, follow the doctor's advice, and closely monitor the progress of labor. At the same time, the pregnant woman can also promote the progress of labor through appropriate activities and postures, such as walking, sitting yoga ball, etc. However, the specific activities and timing should be based on the doctor's recommendations to ensure the safety of the mother and baby.