Bruises are caused by small torn blood vessels under the skin and may occur after a bump or a fall. Blood seeps into tissues, turning them reddish, then black and blue. Most bruises go away within 2 to 3 weeks, after turning yellow, green, and brown. Home treatment may speed healing.
Bruising or discoloration can be more serious when it:
Last Revised: April 15, 2011
Author: Healthwise Staff
Medical Review: William H. Blahd, Jr., MD, FACEP - Emergency Medicine & David Messenger, MD
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