What is the most common cause of first-trimester vaginal bleeding that ends in loss of the pregnancy?
Answer and explanation
Correct answer: A. A chromosomal abnormality of the embryo
- Step 1: About half of early miscarriages are due to chromosomal abnormalities.
Answer
A chromosomal abnormality of the embryo.
Why not the others: The other causes are much less common.
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