Genetic Testing Guides
Frequently Asked Questions About Genetic Testing
Genetic testing can feel overwhelming at first, but gaining a clear understanding of the process, benefits, and limitations can help you make informed health decisions. Below are some of the most common questions asked by patients and families, answered by experts in clinical genetics.
What exactly is genetic testing?
Genetic testing is a medical test that analyses your DNA to detect changes or variants that may lead to inherited conditions or affect your health. It’s often used to diagnose conditions, assess risk, or guide treatment.
Who should consider having a genetic test?
Anyone with a family history of genetic conditions, early-onset diseases, or multiple cases of the same illness in the family may benefit from testing. It is also recommended for some pregnant women or couples planning a family.
Is genetic testing 100% accurate?
While genetic tests are highly accurate at identifying known variants, they do have limitations. Some conditions may not be detectable, and not all variants have a clear clinical interpretation.
Will a genetic test tell me if I’ll definitely get a disease?
Not necessarily. Many tests reveal your risk level rather than a certain diagnosis. Some conditions are influenced by both genes and lifestyle factors.
How long does it take to get results?
It depends on the type of test. Some results are available within a few days, while others may take several weeks, especially if whole genome sequencing is involved.
What happens if my results show a genetic risk?
A genetic counsellor or healthcare provider will discuss the findings with you, explain the implications, and help you decide on the next steps, which may include further testing, lifestyle changes, or family screening.
Is my genetic information kept confidential?
Yes, in the UK and most countries, strict data protection laws apply. Your genetic data is stored securely and is not shared without your informed consent.
