As with any disease, there are lots of myths surrounding the ability of a family member to develop the same form of disease. Some experts say there is no direct link to the said relation and your ability to get the same disease except perhaps for the same environmental factors which may be causing the disease to manifest in both of you. There is no solid scientific basis for cancer being inherited but it should be used as an indicator that you are susceptible to it. The size of breasts is also a point of contention for many claim that having large natural breasts are a sure sign of you being prone to getting breast cancer. Experts say there is also no medical foundation for the myth and that whatever size of breasts you may have; the best tool in the fight against cancer would be to get screened regularly. There are more myths regarding the disease and most are said to be just plain myth without scientific basis. The best tool for prevention and successful treatment is early detection which is the key.