Unless there is an error in the lab, PGD sex selection should almost always pick the desired sex. The risk of having a genetically abnormal embryo goes up as a woman gets older. Hershlag hopes that will change in the future. Ethical concerns[ edit ] The application of these techniques to humans creates moral and ethical concerns in the opinion of some, while the advantages of sensible use of selected technologies is favored by others. Gustofson isn't ethically opposed to another technique, sperm sorting officially called MicroSort , whereby based on a sperm's weight, it is sorted to increase the chances that a subsequent artificial insemination will result in an embryo of a particular gender. Using a screened embryo increases those chances to about 60 to 70 percent. Sex Selection Cost The cost of sex selection varies from clinic to clinic. Most clinics charge anywhere from a few hundred to a few thousand dollars for PGD. Prior to fertilization with IVF, the fertilized eggs can be genetically biopsied with preimplantation genetic diagnosis PGD to increase fertilization success. The sperm which will produce the desired sex are then used to fertilize the eggs. If we start selecting for gender, people could start requesting a certain eye or hair color, or height. During the early to mids, Dr. It is rare to see a clinic offering IVF sex selection completely on its own without a linked reason. Studies have not been consistent about whether timing methods have any influence on the sex of the baby, with some showing no correlation  and others showing just the opposite. For now, PGD is used primarily to help parents have less stressful pregnancies and healthier babies—enormous, life-changing benefits in their own right.