In recent years, genetic and reproductive medicine has developed a genetic study technique that allows us to know the genetic endowment of future parents in relation to numerous diseases caused by recessive genes and thus prevent their transmission to descendants. This is what is known as the genetic compatibility test and only needs a blood sample from the parents to be carried out.
If the test results are negative, i.e. the couple is compatible, there is no risk of having a baby affected by the genetic diseases tested.
However, if the test results are positive for any mutation, the couple is genetically incompatible and there will be a risk of having a sick child. In this case, it will be necessary to take the necessary preventive measures such as, for example, carrying out an IVF with PGD.