The two-child policy was released, and many friends around me began to ask me about pregnancy.
Everyone’s questions are multifarious, the most common one is all kinds of questions about [placenta previa]. For example, two days ago, Jun A, who was pregnant for more than six months, went to the hospital to have a B-ultrasound and came back crying with me in her arms.
When she finished crying, I asked the reason before I knew. The prenatal doctor told her that she suffered from [placenta previa] and [it was easy to bleed, so she should stay in bed as much as possible and not be tired].
Fortunately, this is a [marginal placenta previa], and Jun A has no uterine contraction and the fetus is stable, so it is only necessary to pay attention to observation for the time being.
A Jun asked me with tears: Placenta grows in front, is it easy to fall off when moving?
I can’t help but be happy: placenta previa does not mean that the placenta grows on the anterior wall of the uterus (that is, on the other side of the stomach)!
Where is [former]?
So, what is the position of the placenta, which is called placenta previa?
On the ultrasound list of prenatal examination, there is generally a description that [the placenta is located in the anterior wall/lateral wall/posterior wall of the uterus], of which the anterior, lateral and posterior walls are all positions where the placenta may grow in the uterus under normal pregnancy.
Among them, [placenta is located in the anterior wall], which is completely different from [placenta previa]. The [anterior] of [previa] is actually [anterior] of [anterior], and the cervix is [anterior] of the whole uterus. The closer the placenta grows to the cervix, the more [previa] it grows.
Placenta previa refers to the fact that after 28 weeks of pregnancy, the placenta adheres to the lower segment and lower edge of the uterus, reaching or covering the internal cervical opening, and is located lower than the exposed part of the fetus (referring to the part of the fetus entering the pelvic entrance).
Multiple abortions and curettage, elderly parturients, cesarean section history, test-tube babies, pregnant women’s bad living habits (smoking or drug addicts) and other factors will increase the incidence of placenta previa.
Placenta previa may lead to adverse consequences including but not limited to the following:
Uterine bleeding during and after delivery, placental implantation, puerperal infection, fetal distress and fetal death
In addition, if the placenta previa grows on the scar of the uterus, it will lead to an obstetric complication called [dangerous placenta previa]. When the amount of bleeding is huge, in order to stop bleeding, the uterus may have to be removed during cesarean section.
On the ultrasound list, placenta previa is generally described as [the placenta covers the internal cervical orifice] or [the lower edge of the placenta reaches the internal cervical orifice].
Jun A couldn’t help mumbling: Oh, it turned out to be this sentence from the examination. Why didn’t the doctor tell me when I did B-ultrasound before?
I thought she was in a better mood and joked with her, “I told you early that the child is not scared away yet!”
In fact, it is because, 28 weeks ago, there was no mention of placenta previa.
Why 28 weeks?
Why? The simplest answer is: because earlier, the placenta still had hope of growing up again!
I have come into contact with many pregnant mothers. After 12 weeks of pregnancy, when I learned that [the placenta is low], I was in a rash, as if the pregnancy was doomed to be unsmooth.
However, they do not know: the position of the placenta will change.
If the pregnant mother’s placenta position is unfortunately found to be low, the doctor will not consider monitoring the placenta position until 16 weeks ago, until 28 weeks ago, the placenta position is unlikely to be fixed.
Because, during this period, the uterus is growing up rapidly [backward], just like blowing a balloon. Do you think that the position on the balloon that initially appears [close] to the mouth will magically get farther and farther away?
Therefore, even if the early B-ultrasound shows a low position, pregnant mothers should not worry. It is not too late to let the uterus grow for a while before worrying.
Painless bleeding after three months must be paid attention to.
Although there is really no need to worry about the [suspected] in the first trimester of pregnancy, if the diagnosis is made, we cannot take it lightly.
Placenta previa is one of the serious complications in the third trimester of pregnancy and is also the most common cause of vaginal bleeding in the third trimester of pregnancy.
If there is no regular prenatal examination and painless vaginal bleeding suddenly occurs three months after pregnancy, pregnant mothers must pay attention to it and go to regular hospitals in time. Otherwise, the illness may be delayed and tragedy may occur.
A Jun is in the time of prenatal examination, found that the lower edge of the placenta reaches the cervical internal mouth, therefore, there is no vaginal bleeding at present. Her placenta previa can be described as [the lightest type], stay in bed as far as possible to avoid tiredness, or can let Baoma wait for the birth of the baby smoothly.
So, what kind of placenta previa is called “light” type?
At present, placenta previa is clinically divided into 3 categories according to the relationship between the lower boundary of placenta and the internal cervical orifice:
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Complete placenta previa
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Partial placenta previa
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Marginal placenta previa
In the above three sections, the same lotus canopy is the placenta. The oval is the uterus. The blue circle is the degree to which we can see the placenta when we lay the uterus flat and look through the tubular cervical opening at the bottom of the sectional view.
In the third trimester of pregnancy, the [anterior part] of the placenta on the cervix cannot stretch with the growth of the uterus, and the two will separate. The consequence of the separation of the placental attachment from the uterine body is hemorrhage.
It should not be difficult for everyone to understand that the more [wrinkles] accumulate in the cervical orifice, the more serious the bleeding will be.
A jun can’t help but be scared: oh my god, if you don’t have a timely prenatal examination, you might have suffered massive hemorrhage while walking!
Don’t panic, regular prenatal examination of parturients can find placenta previa in time, and take corresponding preventive measures to avoid the occurrence of adverse outcomes.
It’s already bleeding, how should we deal with it?
After the diagnosis of [placenta previa], there are different coping styles for different situations.
STEP 1 Absolutely in bed
If there is only a little vaginal bleeding, even no vaginal bleeding, only need to rest in bed to protect the fetus.
The [fetal protection] mentioned here is not progesterone, but: take lateral position, absolute bed rest, prohibition of sex and vaginal examination.
2. Seek medical treatment in time
If the amount of vaginal bleeding is large, repeated bleeding, and even uterine contraction occurs, please be sure to be in bed, accompanied by your family, and sent to a regular hospital with rescue conditions for treatment!
Can you still give birth smoothly?
When the gestational age finally exceeds 36 weeks, the pregnant mother can consider terminating the pregnancy.
In the current environment of advocating natural childbirth, many precious mothers will ask me: Can this disease still give birth smoothly?
I would like to remind you that natural childbirth is only applicable to pregnant mothers who meet all the following conditions:
- Marginal placenta previa with occipital exposure, little vaginal bleeding, headless pelvic disproportion or abnormal fetal position is estimated to end delivery in a short time.
If the above conditions are not met, doctors should be cooperated to choose cesarean section so that the baby can safely come to this world.
Friend A Jun, who was diagnosed as [marginal placenta previa], is in good condition at present. The fetal position is positive and the fetus is not too large. If she can still meet the above conditions by then, I will also suggest that she try to give birth smoothly.
After all, she still has a second child to complete… … …
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