The cervix, also known as the cervix, is one of the most important organs in the female reproductive system. The cervix is tightly closed in daily life, which can prevent various pathogens from entering the uterine cavity and prevent the occurrence of uterine diseases. Recently, pregnant women have discovered that doctors will check the length of the cervical canal during ultrasound examination. Therefore, they want to know if the length of the cervix is related to pregnancy?
The length of the cervical canal in women is indeed related to the gestational age. After pregnancy, not only does the length of the cervical canal change, but the width also changes. Generally, the normal average length of the cervical canal is between 3.6 ± 0.5 centimeters, while the normal average width of the cervical canal is between 4.0 ± 0.1 centimeters. As long as it is within the normal range, it is considered normal.
But as the gestational age progresses, the length of the cervix will gradually shorten towards the end of pregnancy when delivery is approaching. If the B-ultrasound examination finds that the cervical canal has disappeared, it indicates that the woman has entered the state of labor. At this time, the cervical opening will gradually expand with the continuous regular contractions. When the cervical opening expands to about ten fingers, the woman can smoothly deliver the fetus.
When women are between 22 and 24 weeks pregnant, doctors will check the length of the cervical canal during ultrasound examination. As long as the length of the cervical canal is above 3 centimeters, it is considered normal and there will be no premature birth symptoms. However, if the length of the cervical canal is within 3 centimeters or even less than 2.5 centimeters, it indicates that the possibility of premature birth in late pregnancy is very high, or if women have short funnel-shaped changes in the cervical canal at 37 weeks pregnant, it is also a manifestation of premature birth.
