Genetic Testing Risks
While there is little risk from collecting most DNA samples, some doctors and psychologists have described dangers of letting their patients know the results without adequate preparation and counseling.
For example, what will a person do when confronted with a result that he will suffer Alzheimer's disease or Parkinsonism?
And what will a man do when he learns that his son or daughter is not biologically his. The man's reaction is likely to go beyond logic and tap into brain pathways that have existed for millions of years.
Another concern of many people is that DNA testing will expose a pre-existing condition, which may alter their life insurance or health insurance policies or benefits.
Sometimes it is better not to know.
However, current thinking is that most persons actually want to know if they have the genes for any terminal illnesses, so they can better prepare for the inevitable.
In circumstances where you are not certain what to do, it is wise to discuss the matter frankly with a counselor, religious leader or your medical provider.