According to Wendy Uhlmann, the male gender is more prone to more than five hundred genetic diseases, for instance, hemophilia (life threatening spontaneous bleeding), Duchene's muscular dystrophy (the most severe and common form of muscular dystrophies) and X-linked mental retardation (inherited mental retardation that is so common). You can decide to have a girl child if you are a carrier of any of these sex-linked diseases. And by doing that, you may not pass on these diseases. You can use flow cytometric sperm separation to avoid these transmitting these diseases.
If you already have one or more children of the same gender and you desire to balance your family by having a different gender, you may use gender selection procedure to select the gender of your next child. This provides the joy of raising both genders. Knowing your child's gender will also help you to plan for your future.
While it is true that gender selection can offer a perfect family, it has potential psychological problems to you and your child. If the gender selection process is successful, it will enhance compatibility between you and the child and will reduce abuse based on gender. However, when the process fails, it can create tension within your family. It could lead to you rejecting and even abusing the undesired child. This can also happen if the desired child does not meet your high expectations of the said gender.
Gender selection is regarded as a discriminatory procedure mostly against women. Dr. James Griffo, the President of the Society for Assisted Reproductive Technology at New York University Medical Center, asserts that sex selection is sex discrimination. By choosing either a female or male child, you might be simply stereotyping on the basis of gender. The idea of placing great importance to a particular gender would lead to unbalanced ratio of males and females thus leading to discrimination of the lesser group.