The BRCA gene test is a blood test that uses DNA analysis to identify harmful changes (mutations) in either one of the two breast cancer.
Learn about testing for inherited gene abnormalities. A genetic test involves giving a blood or saliva sample that can be analyzed to pick up.
Genetic Testing for Breast Cancer Multiple breast cancers in the same woman. The genetic test itself simply involves taking a small sample of blood or saliva.
In its early stages, breast cancer usually does not cause pain and may exhibit no noticeable symptoms. As the cancer progresses, signs and.