Sperm spinning separates male and female sperm, allowing parents to select the gender of their baby. The technique is not guaranteed to be effective and is controversial due to gender selection issues. It was originally designed to avoid passing on sex-linked genetic traits but is also used to balance out existing families or for personal preference.
Sperm spinning is a process designed to separate male and female sperm, allowing parents using the assistance of reproducing technology to select the sex of their baby. Like many techniques used to assist couples who are having difficulty getting pregnant, this process is not guaranteed to be effective, but it can greatly help increase the chances of having a baby of the desired gender. Because gender selection is a complicated issue in many societies, sperm rotation is not without controversy, and many parents who choose to use it do not discuss it with people outside the family.
The idea behind this process is quite simple. Sperm with an X chromosome tends to be heavier than sperm with a Y chromosome, so, in theory, spinning sperm in a centrifuge will separate male and female sperm, with the female sperm sinking to the bottom of the centrifuge. Once the process is complete, the chosen sperm can be introduced into an egg to create an embryo which can be implanted into the mother or a surrogate, depending on the family situation.
In practice, sperm spinning is a little more complicated and different processing techniques are available for couples who want to undertake this treatment. Effectiveness is also a topic of debate, with some studies suggesting it’s not very effective, with a girl’s or boy’s chances being about the same. However, some practitioners have shown they can use the technique reasonably effectively, so it remains popular in the fertility treatment community.
This technique was originally designed for parents who were concerned about the possibility of passing on dangerous sex-linked genetic traits. For example, in a family with a history of haemophilia, having a boy is a cause for concern, as there is a possibility that he is a haemophiliac, whereas females usually only carry the disease. Gender selection can also be used to avoid many other sex-linked diseases by reducing the stress on parents who may be worried about having unhealthy children.
Sperm rotation is of course also used to select babies of the desired gender. In some cases, parents require a specific gender to balance out an existing family, while in other cases, they simply desire one gender over the other. This practice is frowned upon by some people who believe that children of all genders should be welcome, and the issue of gender selection raises some uncomfortable issues for some communities, especially in Asia where boys have traditionally been highly valued over girls. .
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