Chromosome examination mainly refers to check the number of chromosomes or the structure of the human body has no abnormalities, the cost of routine chromosome examination is usually in the 600-800 yuan, but for some special programs may cost about 1,000 yuan, as for what should be done specifically should be decided by a specialist doctor according to the condition. Therefore, if you are worried about chromosomal problems, you should go to a regular hospital for consultation. Generally speaking, the source of specimen for chromosome examination can be blood, oral mucosa shed cells and amniocentesis specimen.