Risk Factors
For
Breast
Cancer
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Breast Diseases
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Risk Factors for Breast Cancer
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History of radiation exposure
Survivors of atomic bomb explosions in Japan are associated with increased incidence of breast cancer
development. This increased incidence appears to occur about 15 to 20 years after exposure to radiation.
Patients with Hodgkins disease who had been treated with radiation therapy is shown to have higher incidence
of breast cancer. Younger the age at which the woman gets exposure to radiation, higher is the risk of
development of breast cancer. Radiation associated with routine X-rays and mammograms not shown to be
associated with increased risk of breast cancer.
Hormone replacement therapy and oral contraceptive
use
A recent study has shown that post-menopausal hormone replacement is associated with increased risk of breast
cancer. Some studies have also suggested the increased risk of breast cancer associated with oral
contraceptive use, however the final word is not out on this matter.
Obesity
Obesity may produce alterations in the endogenous estrogen levels and this may in turn lead to higher risk of
breast cancer.
High fat diet
Some studies have suggested increased risk of breast cancer with intake of large amounts of animal fat. This
is yet to be proven in larger studies.
Alcohol intake
Alcohol intake has been shown to be associated with moderate increase in the risk of breast cancer.
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