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With two children will at least one of them get HD?

February 3, 2015

Huntington's Disease Youth Organization

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With two children will at least one of them get HD?

Q. Theres a mother that has HD. She has 2 children, both male. Is it possible that both of them doesnt get HD and can live with there lives? Or one of them is going to get it?

Stephy, Young Adult, Puerto Rico

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A. Hi Stephy

Thank you for asking a good question. With HD, the risk is 50% for each individual. So any child of a person with HD has a 50% chance of getting HD. In the case you speak of, the mother has HD and her two boys each have a 50% chance of inheriting the condition. This means that it is possible both boys will not get HD, but also it is possible they both will. It’s also a possibility that one will and the other won’t. But it is a common mistake to think that the 50% risk covers all the children. That is not the case, it is always that each individual has their own 50% risk. See more about this on this article on HDYO

Take care