Changes at the genetic level may cause infertility or repeat abortions and should be investigated when there are antecedents that justify their achievement.
Through a blood analysis it is possible to perform the karyotype that allows analyzing the chromosomal constitution of an individual.
In some more complex cases of male factor, chromosomal studies in the blood (Karyotype) should be performed. In selected cases it may be necessary to perform the study of chromosomes in spermatozoa or molecular genetic studies (eg, Y chromosome microdeletions, cystic fibrosis gene mutations).
Genetic studies are an area currently under constant investigation.