Is a stiff cervical canal less likely to dilate?

The cervical canal is firm and not easily dilated; if this occurs, pregnant women should promptly go to the hospital for labor.

The cervical canal is located in the lower part of the uterus, shaped like a cone, with its upper end connected to the uterine body and its lower end extending into the vagina. It measures 2.5–3 cm in length. The central portion of the cervix forms a spindle-shaped lumen that is slightly flattened from front to back. Its lower end opens into the vagina through the external cervical os, and the segment between the internal and external openings constitutes the cervical canal. This area can be examined via vaginal examination, probe testing, or imaging studies such as hysterosalpingography. Generally, when the cervical canal is firm, it is more difficult for the cervix to dilate during labor. A stiff cervix has poor elasticity, making cervical dilation challenging during delivery and increasing the risk of cervical lacerations or even severe hemorrhage. If the cervical canal is firm, the pregnant woman should immediately go to the hospital. If fetal heart monitoring is reassuring, a trial of labor may be attempted. However, if labor progression is inadequate, a cesarean section will be necessary.

Pregnant women should maintain a light diet and avoid spicy or irritating foods such as garlic and chili peppers. Engaging in moderate physical activity, such as walking or prenatal yoga, is beneficial for childbirth.