“If a couple want a boy we replace the male embryos. If they wanrt a girl we replace the female embryos in the womb,” Dr Paul Rainsbury told Sveriges Radio.
The method, known as Pre-implantation Genetic Diagnosis (PDG), entails the genetic diagnosis of eggs fertilised in a test-tube before replacement in the womb.
It is only permitted to use the method in Sweden if a couple can provide proof of a serious hereditary illness.
According to Sveriges Radio it is often couples between the ages of 30 and 35 who approach Rainsbury. They already have two or three children of the same sex and hope that the doctor can help them to establish “a better gender balance”.