Bruising is a common physical symptom. But it can infrequently be a sign of something more worrisome. How do you know when a bruise is something you should worry about? And what causes them? Read the transcript at http://www.quickanddirtytips.com/health-fitness/medical-conditions/when-to-worry-about-a-bruise Check out all the Quick and Dirty Tips shows: www.quickanddirtytips.com/podcasts FOLLOW HOUSE-CALL DOCTOR Facebook: https://www.facebook.com/HouseCallDr Twitter: https://twitter.com/housecalldoc