Chromosomal disorders are mainly lethal and the frequency of being seen at newly born is 0,5%-0,7%. They cause often spontaneous abortions at the first stage of pregnancy. Numerical chromosomal abnormalities have low recurrence risks because of the creation of de novo. They have the risk of emprical recurrence. However in pregnancies the risks observed in practice are less than those in theory.

The situations offered chromosome analysis

Postnatal

• Physical defect observed after birth
• Growth retardation and shortness
• Anomalies in sex
• Mental retardation
• Recurrence pregnancy loss
• Infertility

Prenatal

• Advanced maternal age (≥ 35)
• Defining high risk at abnormal triple test
• Baby history having chromosome anomaly
• Baby history having more than one anomaly
• Diagnosing an abnormality on baby at ultrasonography
• Carried numerical or structural chromosome defects by one of a couple.
• Genetically Inherited diseases related to sex (If the disease cannot be diagnosed by other methods)