Living with the knowledge that you are at risk of HD can be very worrying. You may feel that you would prefer to know for certain if you are affected, or you may be confused about whether or not you want to know. Either way, genetic and psychological counselling is invaluable. The outcome of predictive testing has a significant impact, for which you need to be fully prepared. If you choose to get tested, or if you want to explore the option further, your doctor will refer you to a genetic counsellor. Only after counselling and confirmation that you still wish to know your HD status, is a sample of blood taken so that your DNA can be analysed. 

It is not recommended for those under 18.