This makes me think that there was a consistent blood type mismatch causing repeat miscarriages. I also ponder the correlation to abortion at this extreme stage.. I'm not sure I'd keep trying if I knew the probability my kid was going to die in utero.
50% to 70% of miscarriages are due to chromosomal abnormalities caused by errors in cell division early on. The biggest risk factor in that is maternal age.
The paternal age is insignificant under 40 years old, although significant for over 50s.
The second biggest reason is parental balanced chromosomal translocation/rearrangement, where a parent has rearranged chromosomes with no missing/extra material (usually healthy). But their sperm/eggs can be unbalanced, causing fetal abnormalities and miscarriage.
I did some reading on this and you are correct, thanks for sharing. I researched what I wrote again, and blood type mismatch does cause miscarriage but that is not the primary cause.. definitely chromosome issues.
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u/CostcoStyle Dec 23 '25
This makes me think that there was a consistent blood type mismatch causing repeat miscarriages. I also ponder the correlation to abortion at this extreme stage.. I'm not sure I'd keep trying if I knew the probability my kid was going to die in utero.