The fertilized egg usually has 46 chromosomes, mainly formed by the combination of sperm and egg. The sperm has 23 chromosomes, mainly including 22 autosomes and one sex chromosome, such as X chromosome, Y chromosome, etc. The egg also has 23 chromosomes, forming a total of 46 chromosomes, which also indicates the integrity of the fertilized egg.

If there is an abnormality in the chromosomes of the fertilized egg, it generally may lead to certain effects on the fetus, and there may also be congenital diseases. It is necessary to go to a regular obstetrics and gynecology hospital for comprehensive diagnosis and treatment in a timely manner, to clarify the specific cause of this situation, so that it can be coordinated with the doctor to choose a reasonable way to improve it.