Absolutely, there are boys affected by Rett Syndrome, but it's important to clarify that it's exceptionally rare. Rett Syndrome is primarily associated with girls because the mutation that causes it is located on the X chromosome. Boys typically have one X and one Y chromosome, so if they inherit a mutation on their X chromosome that leads to Rett Syndrome, it's almost always fatal in early infancy. However, there is another condition called MECP2 Duplication Syndrome, where boys have an extra c

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