Menstruation During Pregnancy Is Possible?

Menstruation and pregnancy are two events completely incompatible with each other. Who’s pregnant don’t have cycles, and who got her period cannot be pregnant. There are no exceptions.

However, it is important to make it clear that asserting that pregnant women may not menstruating is not the same thing as saying that pregnant women cannot have frequent episodes of vaginal bleeding during your pregnancy. The point is that these bleeds can have various causes, but, of course, menstruation will never be one of them.

If you have any suspicion that the statement above is not correct, and not only think it’s fully possible a pregnant woman menstruate, as is still able to quote personal cases in which this situation has occurred, I suggest you read this text carefully, as it will remove all your doubts.

So you can understand why the total mismatch between pregnancy and menstruation, we must first explain what is menstruation and as it occurs. In this article we will talk about the menstrual cycle in summary form, if you want more detailed information, please read also the following text: MENSTRUAL CYCLE | How does menstruation according to hyperrestaurant.com.

What Is Menstruation?

The most superficial layer of the wall of the uterus is called endometrium. Each menstrual cycle, the endometrium is preparing to receive a possible embryo.This process occurs through the proliferation of endometrial cells and the development of blood vessels, which will be responsible for the provision of fluids and nutrients for future fetus. The preparation of the uterus for pregnancy occurs every month and begins on the first day of the menstrual cycle, being primarily stimulated by the hormone estrogen and later by the hormone progesterone.

If we do an ultrasound in the early days of the menstrual cycle we will see a thin endometrium, with a single layer, with less than 0.4 cm thick and low in blood vessels. As the days pass, the hormonal stimulation causes endometrial cells proliferate and new blood vessel are created. The final phase of the cycle, the endometrium becomes thick, with 3 layers, viscous, Rico in blood vessels and 1.5 cm thick, which is almost 4 times thicker than at the beginning of the cycle.

After ovulation, if the egg is not fertilized in about 24 hours, he degenerates and the stimulus for the production of estrogen and progesterone stops. As there is no possibility of a pregnancy in this cycle, there’s no reason the body keep the preparation of the uterus for the implantation of an embryo.Without the presence of the hormones estrogen and progesterone, the thick wall of the endometrium loses your stimulus to proliferate and the blood supply is suddenly cut off. As a result, the wall of the endometrium begins to collapse, taking with endometrial tissue, mucus, water and blood.

Menstruation, then, is nothing more than the expressive part of DT inner wall of the uterus, which throughout the menstrual cycle to receive an embryo that was never raised.

Therefore, for the period, the woman must go through 2 stages:

1-Produce estrogen in increasing rate, in order to induce ovulation and proliferate the endometrium.
2-Ovulate and not get fertilized, because the absence of fertilization and the degeneration of the ovum is causes the end of the hormonal stimulus, which, for your time, leads to collapse of the uterine sounds.

Note: when the wife uses birth control pill, she uses hormones to trick the reproductive system, causing the endometrium proliferates, without, however, induce ovulation. When the pill is stopped, the endometrium collapses and the patient gets their period.

Why Menstruation Does Not Occur During Pregnancy?

When the egg is fertilized, instead of estrogen and progesterone levels fall quickly, as occurs when the egg is not fertilized degenerates, they do the opposite, rise, maintaining the endometrium thick and able to receive the embryo. This is the first point, if the menstruasse female after fertilization, the endometrium would be descamado and unable to receive or maintain a viable embryo that has just arrived.

The second point is that, once the embryo has been deployed and is to develop properly in the endometrium, a new hormone starts being produced: the human chorionic gonadotropin, also known by the acronym hCG. One of the multiple roles of hCG is the maternal organism warn that there is a developing baby. This means, among other things, that the ovary is “oriented” more mature eggs every month, which, in practice, causes the woman ovule during any period when you are pregnant.

Therefore, as one of the basic requirements to be menstruation is ovulation, if the woman didn’t ovulate or have the hormonal fluctuations of estrogen and progesterone that occur during the menstrual cycle, it does not provide the necessary stimuli to which could menstruate every month.

But the main reason for the incompatibility of pregnancy with menstruation is much simpler than the hormonal mechanisms described above. Think about it, if the embryo is attached to the wall of the endometrium and placenta him receives the blood needed for your development, if the woman menstruasse, i.e. If the endometrial wall collapsed, as the embryo could remain inserted in the uterus? Could not. Just as it is impossible that a frame remains hanging on a wall that has been overturned, an embryo cannot remain fixed to the uterus, where the wall of this uterus has been ruined.

In short, the pregnant woman has no stimuli required for menstruation to occur, but even if I did, that would mean the immediate termination of the pregnancy, because, as soon as she menstruasse, the embryo would be expelled along with the endometrial tissue that collapsed.

Some of you may be thinking, but I know women who bled during pregnancy, how is this possible?

As already mentioned in the introduction to the text, not all vaginal bleeding is menstruation. There are several causes for bleeding in pregnancy, but none of them is menstruation.

Causes Of Vaginal Bleeding In Pregnancy

We talked about the causes of bleeding in pregnancy in a separate article, which can be accessed through the following link: BLEEDING in PREGNANCY.

Here, so let’s just explain in short the reasons why some women present with vaginal bleeding during pregnancy.

There are various causes of bleeding during pregnancy, and until 1:00 pm each pregnant 5 presents at least one episode of vaginal bleeding in the first 12 weeks of pregnancy. Some of these causes are innocent, but other may indicate serious problems in pregnancy, such as risk of abortion or ectopic pregnancy (read: ECTOPIC PREGNANCY | Symptoms and treatment).

Benign causes of bleeding in pregnancy is called implantation bleeding, which is a discrete blood loss that may arise when the embryo implants in the wall of the endometrium. This bleeding, despite having a very different aspect of menstruation, is often confused with the period, because it usually occurs around the 4th week of the menstrual cycle, when the woman is expecting your period.

Bleeding without clinical significance can also occur after a gynecological exam or even after sex. Nosebleeds occur because the vagina and cervix are more sensitive, with changes in their tissues and blood supply during pregnancy. Women with uterine fibroids or polyps can also be episodes of vaginal bleeding throughout the pregnancy (read: what is a UTERINE MYOMA).

Entering the area of diseases, gynecological infections, such as gonorrhea, herpes, chlamydia, or other forms of candidiasis vaginitis, vaginal mucosa can leave the angry, facilitating the occurrence of bleeding.

From the 20th week of pregnancy, the placenta previa (placenta deployment ahead of the exit hole of the uterus) or premature separation of placenta (when the placenta releases the uterus before birth) are common causes of vaginal bleeding and worrying.

Regardless of the cause, any bleeding during pregnancy should be promptly evaluated by an obstetrician. As already mentioned, there is no menstruation during pregnancy. If you are pregnant and is bleeding through the vagina, even in small quantities, do not assume that everything is fine. Contact your doctor and let him decide if bleeding is worrisome.

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