The chromosome contains genetic information passed from the parent to the child. Therefore, as women get older, the likelihood of errors in cell division increases; the opportunity for chromosome dysfunction increases. "As the egg gets older, all genetic abnormalities increase," (Cohen and Bonifield) Each woman has a certain number of eggs that will not breed and can not be increased any further. During each period, women lose their eggs and these eggs can not be exchanged.
A baby born to a woman in her forties like Cohen is highly likely to be born early, and there is a high possibility of having birth defects. According to a survey by Columbia University, 2.9% of women over the age of 40 were congenital defects, 1.7% of women under 35 years of age. Amongst them, heart problems are the most common: another study found that heart defects are four times higher than those of women aged 20-24 years, compared to women over 40 years old . Modern medicine can be pregnant for 4, 5, even 60 years, but it does not guarantee a smooth and safe delivery path. During menopause and postmenopausal years, pregnancy has an undeniable health risk to health, which often does not pose a risk to more than 40 women wishing for pregnancy. If you are already in your forties and are considering pregnancy, it is important to comprehensive screening to exclude hidden heart diseases and diabetes in anticipation.
One factor that increases the risk of infants with Down Syndrome is the age of the mother. Women over the age of 35 are more likely to suffer from Down's syndrome than those with Down's syndrome 3-5 However, most infants with Down's syndrome are born to mothers under the age of 35. There are two basic types of screening tests and diagnostic tests that can be used to detect Down's syndrome during pregnancy because of the large number of young female births. Screening tests can inform women and their health care providers about whether women in pregnancy are less likely or likely to develop Down's syndrome. Screening tests do not provide absolute diagnosis, but they are safer for mothers and developing babies. Diagnostic tests can usually detect if a baby has Down's syndrome, but it is more dangerous for mothers and developing babies.
According to the Dartmouth - Hitchcock Medical Center, older women are more likely to have birth defects of the chromosome. The most common of these defects is Down's syndrome. This is the case when a child was born with an extra copy of chromosome 21. Patau syndrome is a less common birth defect and is an additional chromosome 13. Edward's syndrome is extra at birth and for infants of chromosome 18. Birth defects born at Edward and Pato rarely survive.