In the past, cancer treatment and detection were classified according to the location of the tumour in the body, ignoring the relationship between gene mutation and cancer. Current studies have found that genetic mutations can cause many types of cancer and cause growth in tumours at different parts of the body. Therefore, once these genetic mutations are found, targeted and effective treatments can be adopted during the early stage.
There are more than 4,000 new breast cancer patients diagnosed in Hong Kong each year, and about 10% of the cases are related to gene mutations, and BRCA 1 and BRCA 2 are the main high-risk mutated genes*. Although carrying a BRCA mutated gene does not mean that you have breast cancer, but the risk of breast cancer will be several times higher than the people without the gene mutation. BRCA genetic testing can detect whether the body carries this genetic mutation, and prevent it as soon as possible to reduce unnecessary burden.
＊Reference: Hong Kong Cancer Statistics Centre, Hospital Authority (Statistics on Female Breast Cancer in 2017 data)