The increase in the incidence of breast cancer in India is due to life style changes such as early menarche, late menopause and either no children or few children and no breast feeding. Inactivity, a sedentary life, obesity and alcohol intake further increase the incidence of breast cancer. Recent data suggest that taking HRT for control of menopause symptoms is another risk factor for breast cancer. Taking low dose hormone birth control pills is not associated with increased risk. Getting older and being a female are the biggest risk factors, 80% of women in our own series of 300 operated breast cancer patients at Delhi Apollo Hospital had none of the risk factors enumerated earlier.
Getting older and being a female are the biggest risk factors…not kissing or even injury
We do not know exactly what causes breast cancer but what we do know is that trauma does not and that it is not passed on to other people by touching or kissing.
Breast Cancer Genes
BRCA 1 & BRCA 2 are two genes that are linked to breast cancer. Damage to these genes can put women at a very high risk for breast cancer. The presence of these two genes can be determined with a blood test. Wide spread use of these tests to identify women who are at a high risk is under debate as the benefits and risk of knowing of the presence of these genes is not clear. Being positive for these genes does not mean that one will get the disease and being negative does not mean that one will not get the disease. Only 5% to 10% of women with breast cancer have this gene mutation. 90% to 95% of women who do get the disease do not carry this gene.