22 weeks pregnant with placenta attached to the front of the body extending from the edge of the cervix is ​​it dangerous?

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Hello doctor!
Currently I am 22 weeks 2 days pregnant. Now that I have had an ultrasound, my doctor has concluded that the placenta is attached to the front of the body and extends 20mm from the edge of the inner hole of the cervix. So, doctor let me ask, is it dangerous to have a placenta attached to the front of the body extending from the edge of the cervix at 22 weeks pregnant? Hope the doctor will reply to my question soon. Thank you!
Nguyen Thi Tuyet Hoa (1995)

Reply
Hi there!
Doctor would like to answer the question: "Is 22 weeks pregnant with the placenta attached to the front of the body extending from the edge of the cervix, is it dangerous? ” as follows:
According to the ultrasound results that you informed: Your placenta belongs to group III, which is the group with the lower border of the placenta attached to the cervix (< or = 20mm from the inner cervical hole) but the position of the placenta. The placenta can improve better (the lower border of the placenta will be farther from the inner cervical opening) as the gestational age increases and the uterus grows larger, pulling the placenta towards the fundus.
When the gestational age is older (after 26 weeks), the position of the placenta is more fixed, then the placenta is diagnosed in group III in the previous stage if at this stage, the lower border of the placenta cannot be pulled up more than 20mm then it should be diagnosed according to the types of placenta previa:
Type 1: Placenta low lying (lower border of the placenta <20mm from the inner cervical opening). Type 2: Placental attachment (the lower border of the placenta attaches to the edge of the cervical opening). Type 3: Placenta previa semi-central (the lower border of the placenta partially covers the hole in the cervix). Type 4: Placenta previa (the lower border of the placenta covers the entire hole in the cervix). Placenta previa can lead to the risk of bleeding during pregnancy and childbirth, endangering the life of mother and fetus: Mother is anemic, prone to premature birth, severe cases may require hysterectomy; The mother's fetus is anemic because of heavy bleeding because the placenta may be malnourished, the fetal position is abnormal (buttock position, ..) because the border of the placenta is located in the lower part of the uterus, making it difficult for the fetus to turn its head, .. .
Indications for cesarean section are set out in the following cases: Placenta previa is bleeding heavily regardless of gestational age, placenta is central previa and the fetus is mature enough,..
Above the doctor has given you an overview. briefly understand the words low placenta, placenta previa,... In your case, the placenta can progress better, you need ultrasound to re-evaluate the position of placenta attached to the next periodic ultrasound (weekly) 26) for the doctor to classify the position of the placenta for you and have specific advice.
If you have any more questions, you can go to a hospital under Vinmec Health System for a checkup and more specific advice. Thank you for trusting and sending questions to Vinmec. Wishing you lots of health.
Best regards!

Answered by Specialist Doctor I Nguyen Thi Minh Huyen - Obstetrician and Gynecologist - Department of Obstetrics and Gynecology, Vinmec Nha Trang International Hospital.