Genetic defects can be treated with third generation IVF. Third-generation IVF, also called pre-implantation genetic diagnosis, is a medical technology that aids in eugenics. After the egg and sperm combine outside of the body to form a fertilized egg, a professional doctor will analyze the genetic material of multiple fertilized eggs individually, so as to screen out healthy embryos to be transferred into the mother’s body. This will ultimately help the patient give birth to a healthy baby. From the perspective of eugenics, if both or one of the spouses have genetic defects, third generation IVF can reduce the probability of fetal malformation. It should be noted that the technology of 3rd generation IVF can only prevent certain specific genetic diseases such as thalassemia, etc. Not all genetic problems can be solved by 3rd generation IVF. Couples who need to undergo 3rd generation IVF are advised to go to a regular hospital and seek consultation with a medical professional before deciding whether to use this technique.