Touch your breasts. Feel for anything unusual, such as lumps, thickening, or changes in skin texture in the breast or armpit.
Look for changes, such as one breast becoming larger than the other, pucking or dimpling of the skin, changes in the appearance or direction of the nipple, discharge, or a rash forming on or around the nipple. Anything that appears unusual visually should not be taken lightly.
Check out anything unusual with your doctor immediately. If a doctor thinks a lump is related to hormonal changes related to your menstrual cycle, he may advise you to wait through one cycle. But if the lump persists or is worrying you, there is no harm in getting a re-examination or an additional test.