Everyone has BRCA genes. When BRCA genes mutate, they do not perform their tumor suppressor duty properly, and thus these put those with the mutated risk at higher risk of developing cancer. BRCA genes are known to cause different types of cancer. BRCA1 mutations carry a higher probability of cancer risk than BRCA2 mutations. BRCA gene mutations are common among some groups. A BRCA positive doesn't automatically mean that your children will have the mutation. Find out your chances of having cancer with a BRCA test to chart out how you could delay it or prevent it altogether.