#Breastselfexamination is a #screening method used in an attempt to detect early breast cancer. The method involves the woman herself looking at and feeling each breast for possible lumps, distortions or swelling.Screening #mammography is a low-dose X-ray examination of a woman's breasts used to detect breast cancer when that cancer is too small to be felt as a lump. Screening mammography is carried out on women who do not have any symptoms of breast disease.