What causes rash and bumps in arm after donating blood?
Patient: I h ave never had problems giving blood in the past I am allergic to some adhesive Andmetals but never once have I had any issues well this past. Saturday, 3 days ago I donated and now my arm in the area where I donated, is broken out in some sort of rash or tiny bumps is that normal? Doctor: Hi, as u said u had a allergic to some metal,it might bcuz if this large bore needle which is used to take blood during donation, kindly consult your doctor and take appropriate treatment. But don't worry this is not serious.