A fetal egg is an embryo and its membranes at the first stage of genesis. This significant start begins with the moment of connection of male and female germ cells - sperm and egg. During this time, the tandem of two germ cells becomes a full-fledged new organism.
The fetal egg is constantly experiencing some kind of metamorphosis. After the merger of the maternal and paternal cells, a zygote is formed, which divides. The process of division and transformation does not stop. After seven days, the ovum reaches the uterus and attaches to it, plunging into the thickness of the endometrium. Up to this point, the vital activity of the embryo is fully ensured by the substances obtained by the egg from the follicle in which it matured. To strengthen the uterus, the egg is covered with villi, which grow into a loose endometrium. At this point, the formation of the placenta begins. After the fetal egg has attached, it receives nutrition from the mother's body through the placenta.
At the time when the introduction into the uterine layer occurred, the fetal egg continues to grow actively. It can already be distinguished by ultrasound. As a rule, with a particularly desired pregnancy, ultrasound is done after a delay in menstruation, although according to the rules, the first ultrasound is done between the tenth and twelfth weeks. If a tiny formation (about five millimeters in diameter) can be examined by a doctor, then the fact of pregnancy is established accurately.
Unfortunately, the beginning of pregnancy is not always accompanied by positive news from doctors. Sometimes it happens that an empty fetal egg is visualized - an egg without an embryo. Usually ultrasound can determine this already in the fifth week - approximately during the first visit on suspicion of a delay in menstruation. If in doubt, a repeated ultrasound is appointed after a time, which confirms or refutes the diagnosis. It is best to do an ultrasound transvaginal probe to obtain more reliable data. Expectant mothers should not be upset in advance - in a significant number of cases the embryo is in the fetal egg, and the heartbeat is already audible. If the embryo could not be seen before seven weeks, the diagnosis is made - anembryony and curettage is done.
Anembryony is essentially an early death of the fetus, so doctors sometimes use the term missed pregnancy. At the same time, the ovum itself exists, but does not correspond to its size, a table of which can easily be found on the Internet. Usually, moms who are expectantly diagnosed are engaged in her searches, however, women should consider the countdown dates and many other parameters. Therefore, in this case, it is better to trust the doctors.
The mechanism of anembryony is that the fetal egg is formed normally, but the germ cells do not divide. Nevertheless, as if by inertia, the egg shells continue to grow, although more slowly. Women at this time can feel all the signs of pregnancy, so the news of the dead becomes thunder from a clear sky. Despite the negative result, do not fall into despair - this does not mean at all that subsequent pregnancies will end as well. After a frozen pregnancy, women become pregnant normally and give birth to healthy babies.
If a deformed fetal egg is diagnosed, then this indicates a threat of miscarriage. Most often, the egg resembles a bean, stretched along. The main cause of deformation is uterine hypertonicity. If there is a heartbeat in such a fetal egg, doctors always try to save the life of the embryo and maintain pregnancy. In this case, complete rest is prescribed, drugs that relieve tone and relax muscles (no-spa, magnesium B6, duphaston, papaverine, dicinone).