Written By: Bhavya Gulati | Published : February 25, 2026 12:00 PM IST
Understanding Hereditary Breast Cancer The Role Of BRCA Gene Mutations
Breast cancer is a prevalent cancer in women across the globe. Although a majority of the instances are isolated, hereditary cases associated with genetic mutations are found in 5-10 percent. Of these, the biggest modification is in the BRCA genes. Knowledge of hereditary breast cancer and BRCA gene mutation application may help people to evaluate their risk, pursue early screening and make informed health choices.
Hereditary breast cancer is a disease that can be inherited by a parent to a child as the mutation of a gene is passed down. BRCA1 and BRCA2 are the most famous genes that are related to inheriting breast cancer. These are genes that are used to repair damaged DNA and are most important in ensuring that the genetic material of a cell remains stable.
Once one of these genes is mutated, the body's repairing capacity of the body against the damage of DNA is hampered. This enhances the possibility of the development of abnormal growth of cells, resulting in cancer. Female carriers of mutagenic BRCA1 or BRCA2 mutations are at a considerably increased risk of getting breast and ovarian cancer during the lifetime than the general population.
Source: NIH
BRCA1 and BRCA2 are suppressor genes. Their main purpose is to repair DNA breaks that are found in cells naturally. In case these genes are not functioning normally, as a result of a mutation, errors may develop in DNA, which will ultimately result in cancer.
The BRCA1 women have a predicted 55 to 70 per cent chance of breast cancer throughout life, and the BRCA2 women have an estimated 45 to 70 per cent chance. These mutations also have the ability to heighten the chances of ovarian, pancreatic and in some instances prostate cancer in men. It should be mentioned that a BRCA mutation inherited does not necessarily result in cancer, though it is highly likely to happen.
Source:NIH
BRCA mutation Genetic testing can be suggested in case you have:
In case of a person who has tested positive of BRCA mutation, there are multiple preventive measures:
More frequent and earlier screening to include annual mammograms and breast MRI scans can assist in the detection of cancer in its early stages.
Some medications are also capable of lowering the risk of breast cancer in women who are at high risk, such as selective estrogen receptor modulators.
Others choose risk-reducing mastectomy or ovarian removal in order to create a high-reduced risk of cancer.
Changes in lifestyle, such as healthy weight, regular physical exercise, reduction in alcoholic beverage intake, and smoking, can also be made to decrease the overall risk of cancer.
Overall, the knowledge of hereditary breast cancer enables families to take active measures. Prognosis of BRCA gene mutations in the early years can result in tailored screening protocols and preventive measures, which can save lives.In case, your family has cancer history of breast or ovary, it is worth talking to a healthcare provider regarding genetic counselling. BRCA mutations knowledge is not merely a risk issue, but prevention, early detection and more informed decision making.
Disclaimer: Dear readers, this article provides general information and advice only. It is not at all professional medical advice. Therefore, always consult your doctor or a healthcare specialist for more information. TheHealthSite.com does not claim responsibility for this information.
