Self-examination of the mammary glands Visual examination: stand in front of a mirror with your arms crossed, first observe the shape, size and skin color of the mammary glands, and go to the hospital for further consultation when you find redness and swelling of the skin, dimple-like changes, changes in the position of the nipple or nipple inversion. Lift the upper limbs to do the same observation. Palpation: gently squeeze the nipple with index finger and thumb to observe the nipple secretion, generally clear and bright fluid is normal secretion, if it is bloody or purulent fluid, you should consult the doctor in time. Check the left breast with your right hand while lying down (check the right breast with your left hand), fingers together (index finger to little thumb), touch the breast smoothly, from the clavicle side to the abdominal side, from the armpit side to the cleavage side. If a lump is touched you should go to the hospital for further examination.