Drug-induced liver diseases are diseases of the liver that are caused by physician-prescribed medications, over-the-counter medications, vitamins, hormones, herbs, illicit (recreational) drugs, and environmental toxins.
Examples of chromosomal disorders. Some of the most common chromosomal abnormalities include: 1  Down's syndrome or trisomy 21. 2  Edward's syndrome or trisomy 18.3  Patau syndrome or trisomy 13. 4  Cri du chat syndrome or 5p minus syndrome (partial deletion of short arm of chromosome 5).ome of the most common chromosomal abnormalities include: 1  Down's syndrome or trisomy 21. 2  Edward's syndrome or trisomy 18. 3  Patau syndrome or trisomy 13.
In most instances, scientists do not know the exact reason why chromosomal abnormalities lead to miscarriage. One theory is that the mother's immune system recognizes a problem in the developing baby's genes and thus ends the pregnancy.