When you find a lump
If you discover a lump in one breast, either during breast self-examination or by chance, examine the other breast. If both breasts feel the same, the lumpiness is probably normal. You should, however, mention it to your doctor at your next visit.
But if the lump is something new or unusual and does not go away after your menstrual period, it is time to call your doctor. The same is true if you discover a discharge from the nipple or skin changes such as dimpling or puckering. If you do not have a doctor of your own, your local medical society may be able to help you find a doctor in your area.
You should not let fear delay you. It's natural to be concerned if you find a lump in your breast. But it's important to remember that four-fifths of all biopsied breast lumps are benign, which means no cancer is present. The sooner any problem is diagnosed, the sooner you can take care of it.