A. “Visual” inspection method 1, hands above the head. 2.Put your hands firmly in the waist and contract your pectoral muscles. 3.Tilt your body forward and observe the shape of your breasts, the changes of nipples and areolas. 4.Pay attention to the changes in the shape of bilateral breasts, whether they are symmetrical, whether there are local skin bulges, depressions and orange peel-like changes, and whether there are symptoms of redness, swelling, heat and pain on the skin of the breast surface. 5, whether the bilateral nipples are symmetrical, whether there is a recent depression, whether there is scaling in the nipple, gently squeeze the nipple, observe whether there is secretion. Second, the breast “touch” examination method 1, the body to the left side reclined, bending knees, the right hand on the forehead, in the right shoulder under a pillow. 2, with the left hand index finger, middle finger and ring finger finger finger to press the right breast, pay attention not to pinch up the breast tissue inspection. 3.Check the outer part of the breast from the armpit to the nipple and from the collarbone to the lower edge of the bra. 4, check the breast finger belly strength gradually from light to heavy, can be divided into three steps, first lightly touch the skin of the breast, and then use a medium force to press the breast. Finally, check with force to be able to touch your ribs. 5. Next, turn to lying on your back. Bend your right elbow and place your arm on the side of your head. Begin examining the medial portion of the right breast with your left hand. The method is the same as for the outer part, ranging from the nipple to the middle of the breast and from the collarbone to the lower edge of the bra. 6. Then examine the upper and lower clavicle. Pay attention to the presence of enlarged lymph nodes, and if a mass is found, pay attention to its location, number, size, texture, whether there is tenderness and movement of the mass. 7. Finally, check the armpits for any enlarged lymph nodes, starting from the center of the armpit, along the perimeter of the armpit, and in turn from the lower part of the arm to the chest and the upper and outer part of the arm.