Learn to self-examine your breasts for early detection of breast cancer Women over the age of 40 should receive one or two breast examinations per year, and every woman should learn to self-examine her breasts in daily life. To do so, you should take a look, feel and compare. One look, that is, after each bath or before going to bed, hold up your hands in the mirror to see whether both breasts are symmetrical and whether there are any changes in the local skin or nipple shape. For example, local skin bulging, hardening or orange peel-like changes; nipple sunken or uplifted; nipple overflowing bloody discharge, etc., are abnormal performance. The second touch, that is, 5 to 12 days after each clean menstruation, lying on your back on the bed carefully touch both sides of the breast. The method is to rub the breasts with the palm side of the hand together, not pinching. Check the right breast with the left hand and the left breast with the right hand. Check for abnormally raised and hardened lumps amidships; for lumps that are clearly painful to the touch. For people with large breasts or breast enlargement, it is like touching your hand on a pile of soybeans with relatively thick outer upper quadrant of both breasts. If there are dates or walnuts hidden in the soy beans, the lump is what is felt to the touch. It is worth noting that generally the outer upper quadrant of both breasts is slightly more heavily enlarged and should be the focus of the examination. Three comparisons, that is, when doing self-examination one should compare bilaterally to see if there is asymmetry. Secondly, we should compare before and after to see if there is any abnormal enlargement and augmentation of the breast than before. Thirdly, we should compare before and after menstruation to see if the enlarged part is better after menstruation than before menstruation. If abnormalities are found, you should promptly go to a hospital specialized outpatient clinic for examination and treatment. At present, the most practical methods of auxiliary examination are ultrasound and mammogram.