Essay on breast cancer

hile we do not yet know exactly what causes breast cancer, we do know that certain risk factors are linked to the disease. A risk factor is something that affects your chance of getting a disease such as cancer. Different cancers have different risk factors. Some risk factors, such as smoking, drinking, and diet are linked to things a person does. Others, like a person's age, race, or family history, can’t be changed.

But risk factors don’t tell us everything. Having a risk factor, or even several, doesn’t mean that a woman will get breast cancer. Some women who have one or more risk factors never get the disease. And most women who do get breast cancer don't have any risk factors (other than being a woman and growing older). Some risk factors are greater than others, and your risk for breast cancer can change over time from aging or lifestyle.

Although many risk factors may increase your chance of having breast cancer, it is not yet known just how some of these risk factors cause cells to become cancer. Hormones seem to play a role in many cases of breast cancer, but just how this happens is not fully understood.

Risk factors you cannot Gender: Breast cancer is about 100 times more common in women than in men.
Age: The chance of getting breast cancer goes up as a woman gets older.
Genetic risk factors: Inherited changes (mutations) in certain genes like BRCA1 and BRCA2 can increase the risk.
Family history: Breast cancer risk is higher among women whose close blood relatives have this disease. Still, most women who get breast cancer do not have a family history of this disease, so not having a relative with breast cancer doesn’t mean you won’t get it.
Personal history of breast cancer: A woman with cancer in one breast has a greater chance of getting a new cancer in the other breast or in another part of the same breast. This is different from a return of the first cancer (called a recurrence).
Race: Overall, white women are slightly more likely to get breast cancer than African-American women. African-American women, though, are more likely to die of breast cancer. Asian, Hispanic, and Native-American women have a lower risk of getting and dying from breast cancer.
Dense breast tissue: Dense breast tissue means there is more gland tissue and less fatty tissue. Women with denser breast tissue have a higher risk of breast cancer. Dense breast tissue can also make it harder for doctors to spot problems on mammograms.
Certain benign (not cancer) breast problems: Women who have certain benign breast changes may have an increased risk of breast cancer. Some of these are more closely linked to breast cancer risk than others. For more details about these, see our document, Non-cancerous Breast Conditions.
Lobular carcinoma in situ: In this condition, cells that look like cancer cells are in the milk-making glands (lobules), but do not grow through the wall of the lobules and cannot spread to other parts of the body. It is not a true cancer or pre-cancer, but having LCIS increases a woman's risk of getting cancer in either breast later.
Menstrual periods: Women who began having periods early (before age 12) or who went through the change of life (menopause) after the age of 55 have a slightly increased risk of breast cancer.
Breast radiation early in life: Women who have had radiation treatment to the chest area (as treatment for another cancer) as a child or young adult have a greatly increased risk of breast cancer. The risk from chest radiation is highest if the radiation were given during the teens, when the breasts were still developing.
Treatment with DES: Women who were given the drug DES (diethylstilbestrol) during pregnancy have a slightly increased risk of getting breast cancer. For more information on DES see our document, DES Exposure: Questions and Answers.
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