Empty sac is a symptom caused by abnormal fetal development. The main manifestation is the absence of the formation of the embryo bud and the embryonic sac. The main cause of this situation is the abnormal development of chromosomes or sperm and eggs. Let’s talk about it in detail below. Chromosomal abnormality is the main cause of an empty gestational sac: chromosomes are composed of DNA and protein, and most genes are located in the DNA of chromosomes. In layman's terms, chromosomes are incompletely developed. Chromosomes are the carriers of genes, so abnormal gene expression will lead to abnormal development of the body, and an empty gestational sac will also occur after conception. The prognosis of different types of chromosomal dysplasia varies, and most have a poor prognosis. Mental retardation and growth retardation are common characteristics of chromosomal diseases. There are many reasons that lead to fetal chromosomal abnormalities, such as abnormal mother's eggs, deformed father's sperm, toxic and harmful chemicals and excessive exposure to radiation, which can cause abnormalities in the embryo's chromosomes. If one of the spouses has chromosomal problems, the probability of miscarriage may also increase. This chromosomal abnormality accounts for 2%-5% of the causes of miscarriage and can be diagnosed by testing the peripheral blood of the expectant couple. |
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