1) In the Shower
With the flats of your 3 middle fingers, check the breast and armpit area pressing down with light, medium, and firm pressure. Cover the entire breast from top to bottom, side to side – from your collarbone to the top of the abdomen, and from your armpit to your cleavage. Feel for any lump, thickening, hardened knot, or any other breast changes
2) In Front of a Mirror
Visually inspect your breasts with your arms at your sides. Next, raise your arms high overhead. Look for any changes in the contour, any swelling, or dimpling of the skin, or changes in the nipples. Next, rest your palms on your hips and press firmly to flex your chest muscles
3) Lying Down
Place a pillow under your right shoulder and your right arm behind your head. Using your left hand, move your fingers around your right breast gently covering the entire breast area and armpit. Use light, medium, and firm pressure. Squeeze the nipple; check for discharge and lumps. Repeat these steps for your left breast