Genetic Counselling

Genetic counselling is a structured conversation with a trained genetics professional about patterns of cancer in your family, your personal history, and the possible meaning of an inherited gene change. Genetic counselling explains inherited cancer risk and helps you decide whether genetic testing and tailored follow-up are appropriate.

The appointment usually includes a family history covering parents, siblings, children, grandparents, aunts, and uncles, including the type and age of cancer where known. The counsellor explains what a test can and cannot show, discusses consent and privacy, and helps you consider how results could affect screening or relatives. A blood or saliva sample may be arranged separately or during the visit.

Counselling itself does not cause physical side effects. Testing can bring emotional concerns, such as worry, uncertainty, or difficult family conversations. A result may identify a higher inherited risk without predicting whether cancer will develop. Tell the counsellor if you would like support planning who receives the result and how it is discussed.

The value of counselling is clearer decision-making: you can choose testing with an understanding of possible results and follow-up. A result may guide earlier or more tailored surveillance, risk-reduction discussions, or testing for relatives. It does not diagnose cancer or replace routine care, and some results remain uncertain.

Inherited cancer risk can involve gene changes passed through a family, but a family pattern may also arise by chance or from shared exposures. Results are commonly described as positive, negative, or a variant of uncertain significance. The meaning depends on the gene, the laboratory interpretation, and the family history.

A consultation may be useful when several relatives have related cancers, cancer occurred unusually early, one person has more than one relevant cancer, or a known inherited gene change is present in the family. It can also help someone diagnosed with a cancer type associated with inherited risk. A genetics team can assess the whole pattern rather than one symptom or diagnosis.

First, the counsellor takes your personal and family history. Next, they explain whether testing is relevant and what sample is needed. You then decide whether to proceed. After the laboratory report is available, a genetics professional explains the result, its limits, and practical follow-up. The plan may include screening discussions or sharing information with relatives.

There is usually no physical recovery from counselling. Allow time to read the result summary and consider questions before making family or screening decisions. If a sample was collected, the service will explain when and how results are returned. Follow-up can be arranged when the result needs interpretation in the context of new family information.

A test may not find every inherited cause of cancer, and a negative result may not remove all family risk. A variant of uncertain significance should not automatically change medical care. Discuss emotional impact, confidentiality, possible implications for relatives, and what happens to a sample and report before testing.

Depending on your history, the next step may be a broader inherited-risk panel, testing a relative who has had cancer, or a focused test such as BRCA genetic testing. Some people choose not to test and instead follow a family-history-based plan. The appropriate option depends on the pattern being assessed.

Look for a cancer genetics service led by a qualified genetic counsellor or clinical geneticist. Ask whether the team offers pre-test and post-test counselling, explains uncertain results, and coordinates follow-up with your oncology or primary-care team. Bring any previous genetic reports and a written family history if available.