An extra chromosome or a missing chromosome can cause miscarriage, usually in the first or second trimester of pregnancy, or can lead to a child with learning difficulties or intellectual disability and birth defects.
What is the most common chromosomal abnormality in miscarriage?
Single autosomal trisomies represent the largest class of chromosome abnormalities in spontaneous miscarriages. Trisomy 16 is the most frequent one (18.7% of the single autosomal trisomies), followed by trisomy 22 (18.5%), trisomy 15 (14.2%), and trisomy 21 (12.2%).
How can you prevent miscarriage due to chromosomal abnormalities?
Reducing Your Risk of Chromosomal Abnormalities
- See a doctor three months before you try to have a baby. ...
- Take one prenatal vitamin a day for the three months before you become pregnant. ...
- Keep all visits with your doctor.
- Eat healthy foods. ...
- Start at a healthy weight.
- Do not smoke or drink alcohol.
