What is placenta previa?

-

The placenta is a maternal-fetal organ that develops during pregnancy, is located in the uterus and is responsible for supplying the basic needs of the fetus through the mother: breathing, feeding and excretion.

Some problems during pregnancy can arise as a result of alterations in the placenta. One of these cases is placenta previa, which occurs when it grows in the lower part of the uterus and covers the entire opening of the cervix or part of it.

Below you have an index with all the points that we will discuss in this article.

Index

What is placenta previa? - Causes, diagnosis and birth

Types of placenta previa

As the pregnancy progresses and the uterus grows, the placenta moves through the uterus. During the first months of pregnancy, it is common for the placenta to be in the lower part of the uterus, but as the weeks progress, it grows and is located at the top.

Once the third trimester of pregnancy arrives, the placenta measures about 22 cm and weighs about 0.5 kg, and should already be in the upper part of the uterus to clear the birth canal.

If this does not happen, there will be a problem of placenta previa, in which the following types can be differentiated:

Placenta of insertion bajala placenta is located in the lower segment of the uterus but does not reach the opening of the cervix.Parage marginal marginal placenta is next to the cervix but does not cover the opening.Partial previa previathe placenta covers part of the cervical opening.Placenta previous total the placenta covers the entire cervical opening. This type is also known as placenta previa occlusiva.Classification of placenta previa

Causes

The exact cause of placenta previa is unknown.

However, there are some risk factors that predispose women to suffer this complication. They are the following:

  • Uterine malformations
  • Twin pregnancy or multiple pregnancy
  • Having had several pregnancies previously
  • Little time between two births
  • Having had a previous delivery by caesarean section
  • Uterine scars from previous abortions or surgeries
  • Advanced maternal age
  • Tobacco and cocaine abuse

Placenta previa occurs in 1 in 200 pregnant women in the third trimester of pregnancy.

Questions from users

Is it possible to have a vaginal delivery with placenta previa?

By Zaira Salvador (embriologist).

This depends on the type of placenta previa. If it is a complete or partial placenta previa, but with a border less than 2 cm from the outlet of the cervix, the delivery route will necessarily be a cesarean section.

On the other hand, if the edge of the placenta is more than 2 cm from the outlet of the cervix, it is possible to have a vaginal delivery. In this case, if there is any complication during delivery or there is bleeding, a cesarean section will be performed immediately.


childbirth cesareo in Almeria(Spain)

Comments

Post a Comment

Popular posts from this blog

The child's uterus: causes, diagnosis and possibility of pregnancy

-
Image
The uterus or infantile matrix is ??a uterine malformation that consists in the insufficient development of the reproductive organ in charge of gestating: the uterus. This alteration is also known as hypoplasia uterine or hypoplastic uterus due to the lack of maturity it presents. Despite the smaller size of the uterus, these women do not always have infertility and some can carry out a pregnancy without problems. Below you have an index with all the points that we will discuss in this article. Index The infant uterus: causes, diagnosis and possibility of pregnancy 1. How is the hypoplastic uterus? 2. Causes 3. Diagnosis 4. Is pregnancy possible? 5. Questions from users 5.1. What are the consequences of having a small uterus? 5.2. Is there any treatment to correct a hypoplastic uterus? 6. Recommended reading 7. Authors and collaborators How is the hypoplastic uterus? The approximate measurements of the normal uterus in an adult woman are 7 cm x 5 cm x 3 cm, al...
Read more

Infertility and sexually transmitted diseases

-
Image
Sexually transmitted diseases, also known as sexually transmitted infections, are a set of infectious-contagious clinical conditions that are transmitted from person to person through sexual contact, which occurs, almost exclusively, during sexual intercourse, including vaginal sex , anal sex and oral sex. Below you have an index with all the points that we will discuss in this article. Index Infertility and sexually transmitted diseases 1. Increase in infertility 2. Consequences in reproductive health However, they can also be transmitted through the use of contaminated syringes or through contact with blood, and some of them can be transmitted during pregnancy or delivery, from mother to child. The increase in sexually transmitted diseases in recent decades has become the leading cause of infertility in both men and women. 70 or 80 percent of cases of infertility are due to obstructions caused by sexually transmitted diseases, both viral and bacterial and fungal, such as go...
Read more

Can I do anything to change the position of a breech baby?

-
Image
In the first two trimesters the fetus is so small that it moves freely, but after the seventh month of pregnancy, when its possibilities of movement become more limited due to the increase in length and volume, it usually turns around and puts the head in place in the uterus. This way, it leaves more space in the upper part of the placenta that is wider, in order to position the legs and the rest of the body more comfortably. This position, in addition, facilitates the delivery. Below you have an index with all the points that we will discuss in this article. Index Can I do something to change the position of a breech baby? 1. Why do you have a breech? 2. Can I do something to change the baby's position naturally? But in 2-3% of deliveries, the baby is placed breech or breech position, in this position the baby is sitting on the cervix and legs crossed, offering first the buttocks at the time of delivery. It is considered incomplete if it is with the legs stretched with th...
Read more