Stand naked to the waist in front of a large mirror in a well-lit room.
Look at your breasts. Don't be alarmed if they seem uneven in size or shape; no breasts are exactly the same.
With your arms relaxed at your sides, notice any changes in the size, shape, texture, or skin of your breasts.
Look for any sores, any wrinkling, dimples, or discoloration of the skin.
Examine your nipples and look for any sores, peeling, or changes in the nipple area.