Breast Test Wales
Breast screening looks for breast cancer before symptoms show. This involves taking mammograms, which are x-rays of the breast. At least two mammograms of each breast are taken.
Mammograms are the most efficient way of detecting breast cancer early. However they will not pick up all breast cancer. The reason is that some cancers are very difficult to see on mammograms and are not always seen by the person reading the mammogram and some cancers cannot be seen at all.
Women at increased risk of breast cancer because of a family history may benefit from screening at an earlier age.