03-22-2009, 02:19 AM
No, cancer is caused by a cell mutation. hitting your breast can cause swelling which may make you think you have a tumor caused by breast cancer. There could be injury to the breast tissue,so if you are still having pain in a few days or if the pain is very severe see a doctor. Place a pack of ice over the swelling(with a towel between the skin and ice) to reduce it.
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