Chromosomes are the vectors of genetic material, and the normal number of human chromosomes is 23 pairs and 46. More than half of patients with early miscarriage are caused by chromosomal abnormalities. So, which groups of people need to undergo chromosome testing?

chromosomes are vectors of genetic material, human chromosomes normal number is 23 pairs and 46 pieces. Male 46, XY; Female 46, XX. More than half of patients with early miscarriage are caused by chromosomal abnormalities. If there is abnormal chromosomes in couples who are preparing for pregnancy, it may lead to repeated miscarriage, embryo discontinuation, infertility and .

So, which populations need to undergo chromosome tests?

① People with a family history of genetic diseases;

② People with reproductive dysfunction, such as primary amenorrhea women and men with azoospermia;

③ Premarital eugenic examination;

④ habitual miscarriage couples;

⑤ People with secondary sexual dysplasia;

⑥ People with bisexual malformations;

⑦ Children with congenital multiple malformations and intellectual retardation and their parents;

⑧ People with close relatives and marriages within three generations;

⑨ Couples who have given birth to children with genetic diseases;

⑩ Those who have been exposed to radiation, chemical drugs, viruses, and other harmful substances that can cause chromosome breakage, etc.;

Therefore, it is necessary to conduct chromosome screening before pregnancy, which can prevent recurrence risks and birth defects in a timely manner, so as to achieve the purpose of eugenics and eugenics.