The common reasons women consider breast reduction surgery are neck, back and shoulder pain, postural problems, difficulty exercising, rashes or infections under the breast fold and self-esteem issues.
Having said this if you feel you need to consider breast reduction surgery for a combination of the reasons above it is still reassuring to know that if you do proceed to breast reduction you are likely to be reducing your risk of breast cancer.
There a multiple international published studies which confirm this observation.
The reduction in risk is in the region of 25- 50%. The effect seems to be greatest in women over 40 years of age but is observed across all age groups.
I have listed the research papers below if you are interested in reading up further about this. (Ref 1-5).
A further study has been published looking into whether the effect is related to how much breast tissue is removed. It does appear the more tissue that is removed the greater the effect....