Sometimes a genetic change is detected in a person’s DNA but there is not enough information available to tell if it is disease-causing or not. An inconclusive result cannot confirm or rule out a specific diagnosis or indicate whether a person has an increased risk of developing a disorder. In the majority of these cases, testing other affected and unaffected family members can help clarify this type of result and should be discussed in detail with your physician. 

Also, advances in this field of science and more powerful technologies are providing us with more and more information every day

Not necessarily. Usually, a positive test is not a 100% risk that a person will develop the disease. 

Depending on the gene, two people with exactly the same mutation in the same gene may have completely different outcomes. One may develop the disease while the other person may remain healthy or might develop a less severe form of the disease. Your genetic background may play a role in the disease, but in some cases, other yet unknown factors may also be influencing whether or not you develop symptoms

Again, there is no guarantee. A negative test might indicate that you or your family member is not affected by a particular disorder, not a carrier of a specific genetic condition or does not have an increased risk of developing a certain disease. 

However, further testing may be required to confirm a negative result. A single test cannot always detect all possible genetic changes that cause a particular genetic condition.

With few exceptions, most genetic diseases cannot actually be cured. For certain genetic diseases, therapy options are starting to emerge. Even though these are rare and can also be expensive, the number of specific drugs for the treatment of the rare diseases is quickly growing. A genetic diagnosis of a specific disease will enable the identification of the best options for you.