Do mammograms cause breast cancer?
Nobel laureate, Dr. John Gofman, believed that 50% of cancer was caused by unnecessary radiation primarily related to diagnostic x-ray studies. Large population studies in Denmark and Canada have revealed that the death rates from breast cancer in women taking regular mammograms and women who have never had mammograms are identical. This probably can be explained by the observation that when a mammogram is positive for a breast cancer the tumor has been present for up to 8 or 10 years. This long delay before a tumor becomes visible in a mammogram allows ample time for the cancer to have spread by lymphatic and vascular channels. An additional problem with mammograms is that approximately 10% of women who do have breast cancer will have normal mammograms. The false sense of security provided by normal mammography in these women obviously delays the diagnosis of breast cancer even more. If this information is valid why are women still having mammograms? Mammography simply joins the long