Can injury, bumps or bites produce breast tumors?

No. However injury to the breast can produce blackand- blue areas on the skin or clots within its substance. In unusual instances any injury ("contusion" is the medical term) to breast fat can bruise it sufficiently so that it forms a hard lump that can simulate a tumor. This is termed fat necrosis, meaning death or loss of vitality of the fat. Sometimes this diagnosis can be made only by biopsy. It is a very happy surgeon who finds this when the examination had suggested the possibility of a cancer.

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