Weird Bruising and Pain after Blood Drawn

Allergies, blood and immune system
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I got bloodwork 2 weeks ago. My veins are very deep so they had to go through my hand. The one hand did not give anymore blood so they switched to the right hand. When it was getting drawn, it was painful because I have very small fragile veins. My upper under arm had recently been hurting me in addition to where I got my blood drawn in my hand. Today I noticed bruising in a straight line all the way up my arm and where it has been hurting the most. My wrist and arm are sore to the touch. I don't know what's wrong. Please help.
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Hi
this is subdermal hematoma.This occurs when a vein is punctured and blood gets trapped in the tissue.It will go away in a week or 2 and the color will change from blue to violet to green to yellow.Pain is normal