Is Active Smoking a Significant Risk Factor for Breast Cancer?

Many studies have shown inconclusive and conflicting results regarding the association of smoking with breast cancer. But newer studies have challenged this conclusion and suggested a connection between smoking and an increased risk of breast cancer

Studies have yet to conclusively prove a link between tobacco smoke and breast cancer, but evidence is piling up.

Is active smoking a major risk factor for breast cancer risk?

It is biologically possible that active cigarette smoking or passive smoking can increase the breast cancer risk. There is direct documentation that breasts are exposed to chemicals within tobacco smoke in active smokers. Study of the fluid in the ducts of the breast of smoking women has shown the presence carcinogens and chemicals at higher concentrations. So this shows that smoking can increase the risk of breast cancer.

Many researches show women who smoke have a much higher risk of developing breast cancer compared with women who have never smoked.
Recent studies say that among current smokers, the risk of breast cancer is significantly higher than those who started smoking before 20 years.
Recent studies say that current smoking is associated with a higher risk of breast cancer among women with no family history of breast cancer, but not among those with a family history of the disease.
Active smoking is linked to aggressive, hormone receptor-negative (HR-) type breast cancer.
Smoking may promote the spread of breast cancer to lungs.

Though the association of smoking and breast cancer is controversial but many recent studies say it as a significant and independent risk factor for breast cancer.

Is Active Smoking a Significant Risk Factor for Breast Cancer?

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