Chromosomal abnormalities are genetic conditions that occur due to a problem with one of the 23 pairs of chromosomes.

There are several different genetic syndromes caused by missing or extra chromosomes, including Down syndrome, Turner syndrome, trisomy 18 and trisomy 13.

Chromosome abnormalities, depending on their size or location, can cause a variety of birth defects and dysmorphic facial features and growth and developmental delay.

In many cases, there is no treatment or cure for chromosomal abnormalities. However, genetic counseling, occupational therapy, physical therapy and medicines may be recommended.

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