What are the reasons for a blighted ovum during pregnancy, and is it related to mood?

Patient's question:

No

Doctor's answer:

Hello, in general, a pregnancy with an empty sac is usually caused by fetal developmental abnormalities. The most common cause is chromosomal abnormalities, followed by developmental abnormalities in the fetus caused by various environmental factors.
Recommendations:
1. Get an HBV test before pregnancy.
2. Undergo pre-natal screening for healthy reproduction.
3. Have a chromosomal examination.
4. Both partners should have a blood type compatibility test to rule out the possibility of hemolysis.