Should i get tested for huntington's disease? my siblings want to know but i dont.

Genetic testing?: No real options exist for treatment at present, although some are in pipeline. Whether you test positive, does not mean they would be. It is soley your call. You did not mention if you where having sign's of huntigton's, or if parents had the disease. But it is your call. If they are concerned, they should be the ones tested.