Cancer is a disease that affects many different parts of the body and different numbers of people. When it comes to women, breast cancer is the main type of cancer they may encounter. Breast cancer is a malignant tumor that grows from the cell inside the breast. There are numerous risk factors, signs, symptoms and treatments associated with breast cancer. There are many different reasons why a woman may be at higher risk for breast cancer than other women. Family history is a risk factor that increases a woman's chance of getting breast cancer. This means that if a woman is part of a family where this disease is common among females or even males, she is at greater risk of being diagnosed with breast cancer than someone who is part of a family where the Breast cancer is not common. If the relative who has this disease is very close, in the sense that it is a sister, a mother or a daughter, the probability that said person will also contract the disease is therefore doubled. This is mainly due to the fact that from close relatives it is possible to inherit the BrcA-1 or BrcA-2 genes, these genes are mutational genes that play a role in controlling the growth of tumor cells. Only a small portion of women inherit this gene, about 1 in 500 to be exact, however when they inherit this gene they have an 80% chance of developing breast cancer in their lifetime. This gene causes women to develop cancer at a young age, usually before menopause. Additionally, women with this gene have a higher risk of developing cancer in both breasts, called bilateral breast cancer. This is because once cancer develops in one breast, the risk of it developing in the other breast increases. (“Breast Cancer”) “About 5-10% of breast cancers are hereditary, passed from one generation to the next through a variety of mutated genes.” (Door 95-105) Finally,