Many people wonder why the elderly still get breast tumors due to high estrogen when the ovarian function is degenerated and estrogen drops suddenly. According to Chen Depo, after the degeneration of ovarian function, the ovaries do not produce estrogen directly, but the body converts androgens into estrogen through an aromatase enzyme, which can also lead to estrogen production. Although there are fewer senior patients with breast cancer, they are mostly malignant once a new lump appears. In recent years, Quanzhou First Hospital has admitted a number of elderly breast cancer patients over 70 years old. Dr. Chen said that the most common phrase heard by breast cancer patients during consultation is “there is a lump in the breast, it does not hurt, but it will increase significantly after a few months”, in fact, the most common sign of breast cancer is a painless lump, and patients are most likely to ignore a painless lump. Women should not ignore breast examinations during physical checkups, and they can also conduct regular self-examinations. The first step in breast self-examination is to take off your shirt and lower your arms naturally to view your breasts in the mirror. Observe the size, shape, contour, symmetry and the height and orientation of the nipples to see if there are any changes or abnormalities. The second step is to raise both arms or fork the waist with both hands to tighten the pectoralis major muscle, repeatedly observe, and turn the body from left to right to scrutinize from different angles. If you find dimple-like dimples or bulges on the surface of the breast, displaced or invaginated nipples, or bloody or coffee-colored nipple discharge, you may have breast lesions. The third step is to palpate the breast and armpit. Lie flat on your back with a small pillow under your left shoulder and place your left hand up next to your ear so that your left breast is fully extended. Place the index, middle and ring fingers of the right hand together and gently make small circles on the surface of the left breast to detect any lumps or local glandular thickening with the sensitive touch of the fingers. While palpating, the patient moves from the nipple to the periphery of the breast or from the outside to the inside in a spiral pattern, palpating the entire surface of the breast in sequence. Then, touch deep under the areola and gently squeeze the nipple to observe any overflow. Next, the left axilla is examined with the same finger technique to see if there is any enlargement of its lymph nodes. In the same way and with the same procedure, the right breast and the right axilla are palpated.