染色体病是由于染色体数目、结构畸变造成基因物质得失所引起的特有的临床表现。常见染色体异常包括数目异常和结构异常。染色体数目异常包括常染色体和性染色体异常。常染色体异常有:21-三体、18-三体、13-三体等这些又被称为非整倍体异常,还有非常罕见的多倍体异常;性染色体 Chromosome disease is due to the number of chromosomes, structural aberrations caused by genetic material gains and losses caused by the unique clinical manifestations. Common chromosomal abnormalities include a number of abnormalities and structural abnormalities. Abnormal number of chromosomes, including autosomal and sex chromosome abnormalities. An autosomal abnormalities are: 21-trisomy, 18-trisomy, 13-trisomy These are also known as aneuploidy abnormalities, there are very rare polyploidy abnormalities; sex chromosomes