Breast milk suction pumping and a possible relation to breast cancer: A bicentric study

In a bicentric clinical study of 343 patients who consulted for breast problems, we collected a questionnaire regarding the use or not of breast milk suction pump during their previous breast feeding. Our results calculate with the Fisher's Exact Test found that in breast cancer patients the previous use of the pump was much more frequent than in patients without breast cancer (p<0.003). A possible role of chronic inflammation created by the breast milk pump could be evoked to explain this result. This impressive finding should be more investigated in large series to confirm or not if breast milk pump using could be considered as a risk of breast cancer.