I always had bruses on my affected rsd areas and also when clothes are too tight don't know why but I always take pictures also injected areas or surgical sites also looked purple,had so many pics just in case ,I need to documented every changes in my body ,those I assume are changes ,I don't know what is call but they look bad specially in your arms and hands, Is not that I'm not careful sometimes they just appear ,hope yours get better,I did asked years back to my PCP for a CBC ,complete blood count just to make sure I did not had white or red cells over acting but everything came normal,assuming now is the rsd ,hope you get an answer and let us know what happens,blessing front Jesika