Why does pregnancy freeze? – this is a question, probably, asks herself every woman who has to endure such a misfortune.
A frozen pregnancy is a pregnancy during which intrauterine fetal death occurs, but the woman does not miscarry.
Why pregnancy freezes
Pregnancy can freeze for a huge number of reasons. For example, a child’s developmental arrest can be caused by all sorts of inflammatory processes or the negative effects of pathogenic bacteria. Microbes that can cause pregnancy to fade:
- streptococci and staphylococci;
- Escherichia coli and cytomegalovirus;
- herpes virus and toxoplasma.
By the way, even an ordinary thrush, or candidiasis, can cause pregnancy to fade.
Gynecological diseases of an infectious nature usually do not have a destructive effect on the fetus, that is, they do not become a direct cause of its death. But such diseases can disrupt the development of the child inside the womb. Such pathological processes in combination with other factors negatively affecting pregnancy are the cause of pregnancy fading.
For example, under the negative influence of diseases of an infectious nature, the fetus and mother may develop malformations of the cardiovascular system, which impede the normal development of the child. However, you should be aware that not every disease of an infectious nature leads to the destruction of the fetus. The destructive effect of a particular infection is due to the principle of its penetration into the mother’s body, the degree of infection of the fetus itself and the amniotic membranes, a variety of the microbe that caused the infection. In addition, attention should be paid to the number of pathogenic bacteria, the duration of the disease in the maternal body and the strength of the immune system.
What is the effect of microorganisms on the fetus?
Pathological microorganisms can enter the uterus from the lower genital system. Such bacteria can infect the amniotic fluid, which partially feeds the fetus. In addition, infection can affect the membranes, thereby getting closer and closer to the developing baby. This is what causes the fading of pregnancy. In addition, pathogenic bacteria can get to the fetus from the ovaries or fallopian tubes, if the foci of infection are located in them.
When does the fetus freeze?
Among other reasons for the fading of pregnancy, hormonal disorders are also distinguished. Disruption of the correct formation and functioning of the corpus luteum in the cavity in the ovaries leads to a decrease in the content of progesterone, and it is this hormone that is considered the main hormone of pregnancy. Naturally, under such conditions, the mother’s body becomes incapable of keeping the ovum in the uterus. Because of this, there is a violation of the blood circulation process and the death of the fetus, since the blood flow brings all the nutrients to it. Also, pregnancy freezes when the level of androgens, that is, male sex hormones, is exceeded in the maternal body.
The level of fetal susceptibility to negative conditions that affect it is determined by the gestational age. The shorter the period, the more negatively these conditions affect the condition of the fetus.
Throughout pregnancy, there are several stages that are dangerous from the point of view of the possibility of fading:
- the moment of strengthening the ovum on the wall of the uterus (day 10);
- the moment of embryo formation (3-7 weeks);
- the moment of formation of the fetal membrane (1-12 weeks);
- the moment of formation in the fetus during the development of organs necessary for life (20-24 weeks).