if you have inherited the HD gene it does not prove that this is the cause of your mood issues. I guess if the test is normal it would rule out HD as the cause, but it is better to try some treatment for the mood problem, which you can do without having to know the exact cause. I hope this helps. Fiona "My dad has Huntington's Disease, I am female and I have a brother. Is just my brother at risk of inheriting the disease or am I too even though I'm a girl? - Sarah (16) Hi Sarah, Unfortunately, if your parent has Huntington's Disease (HD) then you have a 50/50 chance of inheriting the disease regardless of your gender. That means that both you and your brother are at-risk. I know this would be a really difficult thing to cope with and it's completely normal to be really worried about it. I would suggest getting in touch with your local HD association to get more information. Also if you are in Australia, we have a Facebook group with content that only members have access to. If you would like to join add Greg Chaine (HWA) on Facebook send a message asking to be added. There are heaps of members that are also at risk and facing a lot of the challenges that you are currently experiencing. Hope this helps. My biological father has hd, I live in Rochester Ny, and I have made uo my mind to