However, according to the American Cancer Society, there is no evidence that compression of the lymph nodes by bras causes breast cancer; in reality, body fluids travel up and into the underarm lymph nodes, not towards the underwire. [2] Similarly, there is no sufficient evidence that any types of bras cause breast cancer. read more
The results of most studies looking at blood organochlorine levels and risk of breast cancer, including the Long Island Breast Cancer Study, have found no link between the two . Breast cancer clusters . A breast cancer cluster is a small area, such as a town or county, where the rates of breast cancer are higher than the U.S. average. read more
Being overweight or having a lot of body fat puts a woman at increased risk for breast cancer. 4 It would make sense that women with larger breasts are both more likely to wear underwire bras and more likely to develop breast cancer. read more