Re: Injured breast/pain help?
Based on what you describe, I'm inclined to think that you now have mastitis in both breasts. Trauma to the breast can result in mastitis- if the injury causes swelling, inflammation, or perhaps some bleeding within the breast, that can cause a plugged duct. Once the duct is plugged, and can't be drained as effectively as it needs to be, it's not that hard for an infection to take root in the plugged area. Particularly, I think, if you already have some bacteria in your bloodstream from the mastitis in the other breast.
This is a good link on plugged ducts and mastitis: http://www.kellymom.com/bf/concerns/mom/mastitis.html
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