Fetal arrest is an accident that is difficult for all couples who are looking forward to holding a baby, but if fetal arrest has been diagnosed, then decisive abandonment is the most correct choice. But giving up does not mean escaping, and finding the reason for fetal arrest can lay the foundation for the next good pregnancy.
AA69 Fertility Center said that according to a large number of clinical data statistical analysis, the vast majority of fetal stops during pregnancy are due to abnormal embryonic chromosomes. It is impossible to mention chromosomal abnormalities in embryos without mentioning third-generation IVF-preimplantation genetic diagnostic/screening techniques. So, can the detection of embryo chromosomal abnormalities after fetal stoppage do a third-generation test tube? Can you avoid recurrence of anomalies?
First, what is a chromosomal abnormality
Chromosomes are the main carriers of genetic material DNA, there are about 23 pairs of chromosomes in the human body, 22 pairs are autosomal, and the last pair is 23 pairs of sex chromosomes, which are also used to determine the sex of children. Each pair of chromosomes or genetic factors will be separated from each other when the cells are meiosis, and then enter different daughter cells, and different pairs of chromosomes or genetic factors can be freely combined.
When there are chromosomal abnormalities, there will be some manifestations, mainly because of the deletion of chromosomes, translocation, increase in the number, repetition, and the appearance of triploids. So far, there are more than 7,000 genetic diseases clinically discovered, of which more than 400 can be detected by technology, which is also the most powerful advantage of the third generation of IVF technology becoming the final choice of a large number of infertile couples.
Why do embryonic chromosomal abnormalities occur
1. Elderly age leads to meiosis abnormalities, resulting in chromosome separation.
2. Foreign radiation leads to chromosomal deletion, translocation or rupture.
3. Caused by viruses.
4. Caused by autoimmune diseases.
5. Caused by contact with chemicals.
Among the above factors, older production is the most common, if over 40 years of age, the chromosomal abnormality rate is 58%, and the abnormal rate of over 45 years old is as high as 84%. Once a woman is over the age of 40, the development of the fertilized egg is abnormal, which can lead to an increase in the miscarriage rate.
IVF will solve a lot of infertility problems, such as low sperm motility, less sperm, sperm malformations and other infertility caused by infertility, the development so far, the third generation of IVF can also screen embryos, select healthy embryos and then artificially implanted into the uterus, can avoid embryos from the greatest extent possible to appear abnormal again.
Women's fertility is gradually declining with age, so even if you choose to do IVF, you should also be early, because the older you are, the more likely your chromosomes are to appear abnormal, which will also lead to a decline in the success rate of IVF, so if you plan to do IVF, you must prepare early, go to the hospital for a comprehensive examination, and conceive a healthy baby as soon as possible.