The cervical length of normal adult women is generally 2.5-3.0 mm. As for the inner diameter, it depends on everyone's situation. However, some women's cervix will be slightly smaller, which is generally caused by dysplasia. However, women who have never given birth to children have smaller cervix, so the uterus is not necessarily small, so pregnant mothers don't need to worry too much.
1. Small cervix generally does not affect pregnancy.
Small cervix generally does not affect pregnancy. As long as the ovarian function is normal, the uterine body is normal, the menstrual regularity and normal ovulation will not affect pregnancy. When a sperm meets an egg, it becomes a fertilized egg. In fact, the fertilized egg is so small that we can't see it with the naked eye. So as long as the cervix is opened, the fertilized egg can return to the uterus as scheduled.
If the cervix is really too small, it may also lead to infertility, which is one of the reasons for female infertility. However, it can be treated. If it is treatment, it is recommended to go to a regular hospital and never use drugs indiscriminately.
2. The small cervical canal is not a short cervical canal.
Generally speaking, the shorter the cervical canal, the more likely it is to cause abortion. However, the small cervical canal does not mean that the cervical canal is short, but the incision of the uterus is relatively small, which will not increase the chance of abortion because of the small cervix.
3. A small cervix will affect the delivery.
① The biparietal diameter of a normal full-term fetus is generally above 9.3cm. If the fetus is heavier, the biparietal diameter will be correspondingly wider. The head of the fetus is the hardest part of the whole body. Where the head can pass, so can the body. Therefore, the expansion of the cervix must be greater than the biparietal diameter.
② During delivery, the cervix needs to be fully opened, about 10cm. If the cervix is small, it may affect the normal cervical dilatation, which may not reach the width needed by the fetus, thus affecting delivery.
③ If the cervical dilatation is less than the biparietal diameter of the fetus, it will prolong the birth time of the fetus, which may lead to cervical laceration and fetal hypoxia.
4. What if the cervix is small?
Generally speaking, the cervix of a woman who has never given birth to a child is relatively small. It is best to go to a regular hospital to check if the cervix is really small.
② Smaller cervix generally does not affect normal pregnancy, as long as you relax your mind and prepare for pregnancy normally. There are no special circumstances and no special treatment after pregnancy.
If the cervix is really small, it may affect the delivery. Therefore, it is best to accept the doctor's advice and try caesarean section.
Small cervix may also lead to infertility. If the cervix is really too small, it should be treated in time.
Some women's uterus will have a little difference in growth and development, as long as the difference is not big, it will generally not have an impact. The cervix is a very important position in the uterus. If the cervix is small due to dysplasia or other reasons, it can be treated before pregnancy.
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