Still, the link between extra weight and breast cancer is complicated and affected by other factors. For example, the location of the extra weight matters. Extra fat.
For women, being overweight or obese after menopause increases the risk of breast cancer. Having more fat tissue can increase your chance of getting breast cancer by raising estrogen levels. But the connection between weight and breast cancer risk is complicated.
Weight changes are a common side effect of certain breast cancer treatments. WebMD has details.
Learn how being overweight or obese may affect your risk of breast cancer.