Is chromosomal abnormality the main cause of miscarriage?

Patient's question:

Three miscarriages, one induced abortion, one medication-induced abortion, and one suspected spontaneous abortion. In 2007, an induced abortion was performed after 40+ days of pregnancy; in 2008, due to unknown reasons, painless vaginal bleeding occurred twice at 40+ days of pregnancy, and medication-induced abortion was self-abandoned; in 2010, amenorrhea occurred after 38 days, a weakly positive result was obtained with a pregnancy test, but no pregnancy signs were observed on ultrasound. Subsequently, lower abdominal pain occurred followed by vaginal bleeding. Rest in bed was ineffective, and it was unclear whether pregnancy tissue was expelled.

Doctor's answer:

Analysis of the condition: Hello: Based on your situation, it is considered that you may have a history of induced abortion. Therefore, if you become pregnant again, you will need to undergo a chromosome test, a hormone level test, and an ultrasound examination. This will be beneficial for healthy reproduction. A history of induced abortion can increase the likelihood of habitual abortion. There are many causes of miscarriage.
Suggestions: Early embryonic arrest of development or miscarriage is often due to problems with the chromosomes themselves. The arrest of fetal development is usually caused by congenital defects in the embryo, which may be due to chromosomal or genetic issues. It may also be related to genetic factors, whether there is an infection, exposure to radioactive substances, toxic chemical agents, consumption of drugs prohibited during pregnancy, high temperatures, or excessive stimulation. You need to identify the cause and pay attention to your recovery after an induced abortion.

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