Friday, December 7, 2012

Risk factors for breast cancer

Risk factors for breast cancer






 
Several factors may lead to breast cancer, these factors relate to heredity, environment or other diseases of the breast. The most important factors that may lead to breast cancer are:· Gender: Breast cancer affects women a hundred times more than men.· Generation: increasing risk of breast cancer with age, especially after the age of fifty.· Family history: increase the risk of developing breast cancer if they found cases of breast cancer in family members of the first class ( mother and sister).· Breast cancer in the other breast, increases the risk of breast cancer.· The presence of breast cancer in the past.
· Menarche before the age of twelve, because it increases the vulnerability of the tissue to estrogen.· Late menopause after the age of fifty-five, because it increases the exposure of breast tissue to estrogen.· Late birth: whenever the birth was delayed more exposure to estrogen.· The number of births little or no confinement: protect from breast cancer, so fewer births increased risk for breast cancer.· Obesity and excess weight.· Alcoholic beverages.· Hormone replacement therapies: that hormone therapy - especially estrogen - for the treatment of menopausal symptoms, for a period of more than ten years increases the risk of breast cancer.· Taking the pill for more than ten years.· Radiotherapy: radiotherapy of the chest - to treat another cancer in the chest often - increases the risk of breast cancer.· Genetic factors: Some genetic factors increase the risk of breast cancer. Studies have shown the presence of certain genes increase the risk of breast cancer, and these genes are also associated with ovarian cancer. The most important of these genes are BRCA1 & BRCA2.· Other factors increase the risk of breast cancer, but they are less important than the previous factors. Since women skin  risk for breast cancer than white skin. The women who live the city gestational more than women in rural areas.Many factors may lead to breast cancer, and the effect of different factors, and it may be confusing to some. So preferable to discuss risk factors with a specialist breast cancer.

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